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    Keto Lemon Bars | Healthy Low Carb Easy To Make Lemon Bars For Keto

    Jun 18, 2022 The Diet Chef

    Jump to Recipe

    Have you ever wondered how to make deliciously sweet and tangy keto lemon bars? Well, it’s your lucky day! Because today I’m going to show you how to make one of the best keto desserts ever...You guessed it, low-carb, sugar-free, keto lemon bars. And the best part is they have all the sweet tasty tanginess that you'd want from a "normal" lemon bar but for just 2.5 NET CARBS a piece.

    Lemon bars on parchment paper next to a lemon.

    Table of Contents

    • Keto Lemon Bars
    • How to Make Keto Lemon Bars
      • Shortbread Crust
      • Making The Filling
      • Sugar Free Lemon Bars
      • Keto Flours To Make Lemon Bars With
    • Nutritional Info On These Low Carb Lemon Bars For Keto
      • Keto Drinks To Pair With These Lemon Bars
    • More Keto Dessert Recipes To Try
    • Keto Lemon Bars | Healthy Low Carb Easy To Make Lemon Bars For Keto
      • Ingredients
        • Shortbread Crust:
        • Filling:
      • Instructions
      • Nutrition
      • Did you make this recipe?

    Keto Lemon Bars

    These lemon bars have been one of my favorite go-to keto desserts lately because they taste so fantastic.

    In my opinion, the best thing about this keto dessert recipe is that it hits all the hallmarks of an awesome lemon bar – it’s chewy, tangy, and perfectly sweetened!

    It has a super delicious and bright flavor that you’ll love.

    And did I mention that each serving is only 2.5 net carbs?

    I think I did, but it's definitely worth repeating.

    Mostly because when you taste these bars you'll have a hard time believing they're keto.

    The top of a lemon bar covered in Swerve.

    How to Make Keto Lemon Bars

    First things first, let's talk ingredients.

    Here are the ingredients you'll need for your bars:

    • Salted Butter
    • Pure Vanilla Extract
    • Eggs
    • Lemons
    • Blanched Almond Flour
    • Confectioners Swerve

    And for the keto powdered sugar topping:

    • More Confectioners Swerve

    That’s it!

    It’s literally just 6 ingredients.

    You probably have most of these lying around the house, too.

    Like I said, totally easy. And if you have any leftover lemons I highly recommend making my copycat Chick Fil A Diet Lemonade next! Oh, and if you have eggs leftover, give my keto creme brulee recipe a shot too!

    Shortbread Crust

    Making this recipe is divided into two parts: the crust and the filling. This is necessary for making these the BEST keto lemon bars because it gives you that gooey upper layer and that chewy bottom layer.

    A keto lemon bar on a serving dish with lemons behind it.

    The crust to these bars is a shortbread crust.

    So, to make it, we're going to add just less than a cup of almond flour and a heaping 3 tablespoons of Confectioners Swerve to a medium-sized bowl and mix well. Then we're going to add 3 tablespoons of melted butter, ½ a teaspoon of vanilla extract, and one egg yolk.

    Then, once those are added, we're going to mix everything until crumbly, and then press the dough into an 8x8 baking tray, and start baking it. And, at this point, we're just going to par-cook the crust...so it will only need to bake for around 10 minutes at 350°F.

    Making The Filling

    A lemon bar on a small serving dish.

    Anyways, while the shortbread crust is in the oven, you’ll want to make the filling. This part has all of that tangy lemony goodness that makes these lemon bars so addictively delicious.

    So, to make the filling we're going to add...3 eggs, the juice from 3 lemons, ⅔ of a cup of Confectioners Swerve, just less than a cup of almond flour, and some lemon zest to a medium-sized bowl.

    That said, you'll want to add & combine the eggs and lemon juice first, before adding the dry ingredients. Doing this will ensure that the filling ingredients completely mix into one another.

    Now, after you've whisked all of those ingredients together, you should have a thick wet batter. And your crust should also be finishing up in the oven at this point as well.

    Having said that, once the crust does finishes cooking, you’ll want to pour the batter on top of it, and bake for another 25 minutes or so.

    What we’re looking for here are golden crispy edges that are just starting to pull away from the parchment paper. And we're also looking for a filling that is just ever so slightly giggly in the middle as well. Then, when that happens, we're going to remove the baking tray from the oven and let it cool down to room temperature.

    Now, these keto lemon bars are best served cold. So once our the tray of lemon bars cools down, we'll want to refrigerate them for atleast an hour.

    Then, once the bars are chilled, we can remove them from the fridge, cut them into 9 squares, and sift some powdered sugar - Confectioners Swerve - on top of them.

    Gah, my mouth is watering just thinking about making them!

    I said it before and I’ll say it again – thes bars are addictive.

    Sugar Free Lemon Bars

    One keto lemon bar on a small serving dish.

    As I'm sure you know, lemon bars are a great dessert or snack, but most of the time, they’re super full of sugar and carbs – not very keto friendly.

    However, I keep my keto lemon bar recipe low carb & sugar-free by replacing the sugar with confectioner’s erythritol. It’s a low carb sweetener that works great with this recipe – I highly recommend trying it with other keto dessert ideas too. It gives you that perfect balance of sweetness without the added carbs! I like this one from Swerve – it dissolves really well, and most importantly, it has 0 net carbs & 0 calories!

    Keto Flours To Make Lemon Bars With

    Keto lemon bars stacked on top of one another on a small cake plate.

    So, another problem with lemon bars is the carbs from the flour.

    For this low carb dessert recipe, I use blanched almond flour. It has an awesome flavor and texture, plus you won’t be able to tell the difference between it and white - or wheat - flour. Plus, almond flour - atleast the one that I use - has just 2 net carbs per serving, which is way less than "normal" flour.

    With that said, if you'd like to substitute the almond flour, you can do so with walnut flour or sunflower seed flour. Both of these flour can be used as an almond flour substitute at a 1 to 1 ratio. So, just use the same amount of them in place of the almond flour, and they'll work great as a low carb crust base ingredient in this recipe.

    Pro tip: You can substitute some of the flour for 0 Carb Unflavored Whey Protein Powder. It’s a trick I use in some of my other dessert recipes – like in these keto brownies – that really helps lessen the number of carbs.

    Now, if you decide to use a little protein powder, the rule is that 1 gram of protein should be substituted for 1.5 grams of almond flour.

    Having said that, the most almond flour I'd substitute out of the crust would be 15 grams. So, that means you'd use 10 grams of protein powder in its place.

    Also, not all protein powders are created equal, so if you do use it, make sure you use this protein powder.

    Nutritional Info On These Low Carb Lemon Bars For Keto

    A stack of keto lemon bars on a serving plate.

    As I've already mentioned a couple of times, one of my favorite things about these bars is the carb count.

    The fact that each one of these bars has just 2.5 net carbs is mind-blowing - and yes, that's even including the powdered sugar topping.

    Anyway, when you taste these you'll know exactly what I'm talking about.

    By the way, the recipe makes 9 lemon bars, and each one has...

    • 210 Calories
    • 18g Fat
    • 5g Carbs
    • 2.5g Fiber
    • 2.5g NET CARBS
    • 7g Protein

    Also since we’re all staying indoors - for now anyway, it’s an excellent opportunity to make these lemon bars!

    Plus, you get to do something with all the extra time you have at home...and you get a fantastic keto dessert out of it too.

    It's a win-win!

    Keto Drinks To Pair With These Lemon Bars

    Lemon bars stacked on top of one another.

    If you're looking for some tasty keto recipes to pair these low carb lemon bars, I definitely have a few on the blog.

    The first recipe that comes to mind is my keto dalgona coffee recipe – another excellent choice during the #stayhome season.

    I highly recommend pairing these keto lemon bars with that super low carb and delicious trending coffee for a café vibe at home.

    However, if sweet and milky coffee isn’t your thing, I also have a bulletproof coffee recipe. It’s got all the richness and energy you want from a great cup of coffee without the caffeine crash! So definitely check out that recipe because pairing that with the bars would make a super delicious breakfast treat too.

    More Keto Dessert Recipes To Try

    A hand holding a lemon bar that's been bitten into.

    Okay, so we’re all probably going to be at home for a little while longer. And that means now's a great time to stock up on keto snack and dessert recipes.

    A few of my all-time favorites are these...

    • Peanut butter cookies
    • Cheesecake
    • Chocolate mousse
    • Peanut butter fudge
    • Chocolate cake

    Also, if you're looking for even more tasty dessert deliciousness, there are a ton of other recipes in my cookbook - The Ultimate Low Carb Keto Cookbook: SWEET EDITION!

    It’s got over 125 super easy keto recipes that are sure to satisfy your sweet tooth in a totally low carb keto friendly way.

    Print

    Keto Lemon Bars | Healthy Low Carb Easy To Make Lemon Bars For Keto

    A stack of keto lemon bars on a serving plate.
    Print Recipe

    5 from 42 reviews

    These are THE BEST, healthy, low carb, keto lemon bars! They are so easy to make, and there's no sugar added to them, so they're totally kid friendly too. And, when you taste these keto lemon bars you'll have a hard time believing this is a low carb recipe for them...that's how good they taste. That said, each lemon bar has just 2.5 NET CARBS, so you can indulge guilt-free with this recipe.

    • Author: The Diet Chef
    • Prep Time: 15 Minutes
    • Cook Time: 20 Minutes
    • Total Time: 35 minutes
    • Yield: 9 Lemon Bars 1x
    • Category: Dessert
    • Method: Baking
    • Cuisine: Keto Low Carb

    Ingredients

    Scale

    Shortbread Crust:

    3 Tbsps (42g) Salted Butter, Melted
    ½ teaspoon (2g) Pure Vanilla Extract
    1 Egg Yolk
    Just less than 1 Cup (100g) Blanched Almond Flour
    3 Heaping Tbsps (30g) Confectioners Erythritol

    Filling:

    3 Eggs
    Juice of 3 Lemons (80g)
    Zest of ¼ of a Lemon
    ⅔ Cup (100g) Confectioners Erythritol
    Just less than 1 Cup (105g) Blanched Almond Flour

    Instructions

    1. Preheat your oven to 350℉ (177℃).
    2. Whisk the dry crust ingredients together in a medium-sized bowl.
    3. Add in the wet ingredients and mix with a spatula until a dough forms.
    4. Line an 8x8 in. square baking tray with parchment paper and coat it with non-stick
      baking spray.
    5. Add the ball of dough to the tray and press it outwards so that it covers the bottom of the tray.
    6. Bake the crust for about 10 minutes - Start preparing the filling while it's cooking.
    7. FILLING: In a medium-sized bowl, whisk the wet ingredients until creamy & combined.
    8. Then add in the dry filling ingredients, and whisk again - The filling should be “wet”.
    9. Pour the filling on top of the crust.
    10. Bake for 20-25 minutes or until the edges just start to pull away from the parchment paper.
    11. Let them cool completely before placing in the fridge.
    12. Refrigerate for at least an hour - and up to several days - then then cut into 9 lemon bars.
    13. Sift Confectioners Swerve over the top of the bars just before serving.
    14. The bars are best served chilled. Store covered in the fridge.

    Nutrition

    • Serving Size: 1 Lemon Bar
    • Calories: 210
    • Fat: 11
    • Carbohydrates: 5
    • Fiber: 2.5
    • Protein: 7

    Keywords: keto lemon bars, lemon bars keto, low carb lemon bars, lemon bars low carb, best keto lemon bars, lemon bars recipe, recipe for lemon bars, easy keto lemon bars, how to make lemon bars, how to make keto lemon bars

    Did you make this recipe?

    Share a photo and tag me on Instagram @thejoeduff — I can't wait to see what you've made!

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    About The Diet Chef

    Comments

    1. Ellen Henley says

      June 30, 2020 at 6:16 pm

      Is it possible to exchange a tablespoon or two of almond flour for a tablespoon of ground flaxseed meal or psyllium husk powder to increase the fiber and lower the net carbs without impacting the flavor too much?






      Reply
      • The Diet Chef says

        July 06, 2020 at 1:35 pm

        I think so :)

        Reply
    2. Amanda says

      July 05, 2020 at 1:24 am

      Fantastic recipe! Easy to make! These are perfect just the way you have them! No need to alter or modify!






      Reply
    3. Sharon Hooper says

      July 06, 2020 at 1:27 pm

      Hi, made these lemon keto bars, they're absolutely divine. Can I freeze them.

      Sharon

      Reply
      • The Diet Chef says

        July 06, 2020 at 1:36 pm

        I think they'd freeze fine!

        Reply
        • Anne says

          July 14, 2020 at 10:25 pm

          I froze them and they are divine. They can be eaten frozen and it makes for a delicious hot weather treat.






          Reply
    4. Yara muniz says

      July 08, 2020 at 11:16 pm

      Can i use lemon juice or extract instead of the 3 lemon squeezed?

      Reply
      • susan says

        April 22, 2022 at 8:20 am

        since you don't have an answer yet: extract won't work, because the filling needs the liquid, volume, & acidity from the juice

        Reply
    5. Stephanie Acosta says

      July 09, 2020 at 12:06 pm

      I made these yesterday and my children even loved them.






      Reply
    6. blitzen says

      July 22, 2020 at 2:12 am

      OMG. these are SO delicious!!💚
      quick question tho:
      what is the FAT content per bar, please??
      in the article, it says 18g of fat per bar, but the nutritional info has it listed at 11g... could u clarify, please? (just tryin to track my macros🙂)






      Reply
    7. Sonia says

      July 30, 2020 at 10:12 am

      First of all: all your recipes that I made so far are bomb. I love how quick and easy they are! The only concern that I have is the consistency as soon as I add the almond flour. I am from Germany and I think it has to do with our almond flour. I tried to add a little bit of water but than the dough etc is strange. Do you have any suggestions what I can do? Thanks a lot for your help. Keep it up!






      Reply
    8. Kirsty Plumley says

      August 03, 2020 at 3:06 pm

      New to Keto these are amazing thank you. How long can you store them in the fridge for?






      Reply
    9. Kirsty says

      August 03, 2020 at 6:05 pm

      Make them they are amazing how long should they last in the fridge?






      Reply
    10. Olya says

      August 05, 2020 at 9:51 pm

      Absolutely delicious






      Reply
    11. Ciji says

      November 26, 2020 at 11:27 am

      Absolutely delish! My only deviation from the recipe was adding some walnuts to the crust. I will definitely make these again.






      Reply
    12. Natalie says

      February 01, 2021 at 8:55 pm

      I was trying to find recipes that are keto and taste great... well thank you they are amazing... deserts and breads are really hard to find great recipes..
      I usually experiment with regular favorites and substitute the sugar and flour with keto.. thanks so much will be following your recipes..

      Reply
    13. Denis says

      March 03, 2021 at 5:07 pm

      My wife made these and they are remarkable . I recommend these to anyone.






      Reply
    14. Toni-Cara says

      June 01, 2021 at 6:50 pm

      These were INCREDIBLE!! I will definitely make these again and again! Just the right amount of EVERYTHING!!!!! Thank you for this awesome dessert recipe!!!
      ✨🍋✨🍋✨🍋✨🍋✨






      Reply
    15. Louise says

      July 13, 2021 at 2:47 pm

      Totally hit the spot!






      Reply
    16. Sally says

      July 14, 2021 at 3:01 pm

      The crust on these is dreamy. My mouth is watering thinking about eating them.






      Reply
    17. Laurel says

      July 15, 2021 at 2:09 pm

      Perfect lemon flavor. Very refreshing.






      Reply
    18. Alexa says

      July 15, 2021 at 3:15 pm

      Awesome!!






      Reply
    19. Pamela Flatek says

      July 16, 2021 at 10:51 am

      Had a craving for something light and sweet and these were just what I needed. Delicious!






      Reply
    20. Alea Hosker says

      July 17, 2021 at 5:50 pm

      The texture of these was amazing, so addicting!!! I think you're trying to make me eat the whole tray!






      Reply
    21. Samantha says

      July 18, 2021 at 11:09 am

      Great ratio of crust to filling. I've made other keto lemon bars before and there was way too much filling.






      Reply
    22. Hayden says

      July 19, 2021 at 12:38 pm

      Super delicious/refreshing summer recipe!! Thanks:)






      Reply
    23. Maya O says

      July 20, 2021 at 3:45 pm

      Really liked everything about these! Will make again soon:)






      Reply
    24. Amira says

      July 21, 2021 at 12:03 pm

      Refreshing and simple to make! Loved!






      Reply
    25. Julia says

      July 22, 2021 at 6:28 pm

      We made these last summer, and we’re making them again this summer! Perfect lemon bars right here.






      Reply
    26. Adrian says

      July 23, 2021 at 2:00 pm

      Best lemon bars I've ever had!






      Reply
    27. Connie says

      July 23, 2021 at 6:15 pm

      Absolute tangy deliciousness.






      Reply
    28. Lyla says

      July 24, 2021 at 11:34 am

      The filling is to die for.






      Reply
    29. Salie says

      July 25, 2021 at 11:10 am

      Made them last night and came out perfect! Had some people over and they really liked them too.






      Reply
    30. Maureen says

      July 26, 2021 at 3:43 pm

      Perfect summer dessert!






      Reply
    31. Natalia says

      July 27, 2021 at 5:25 pm

      This has been my go to all summer long, love it every single time.






      Reply
    32. Carly says

      July 27, 2021 at 7:32 pm

      So refreshing. TYFS






      Reply
    33. Helena G says

      July 28, 2021 at 7:26 pm

      I like that the filling is not mushy. Good consistency.






      Reply
    34. Rory says

      July 30, 2021 at 1:03 pm

      Not super into lemon recipes but I really enjoyed these bars!!






      Reply
    35. Cristine says

      July 31, 2021 at 9:11 am

      YUM!!






      Reply
    36. Rae says

      August 02, 2021 at 3:10 pm

      Lemon bars don't get better than these. 10/10 recommend making them.






      Reply
    37. Gulianna says

      August 04, 2021 at 4:26 pm

      That powdered sugar topping is the icing on the bars(;






      Reply
    38. Malia says

      August 06, 2021 at 1:15 pm

      These honestly do melt in your mouth with every bite! Just as good as advertised.






      Reply
    39. Mikayla says

      August 08, 2021 at 8:53 am

      I froze these the day after making them and omg they are even better chilled!!






      Reply
    40. Taylor says

      August 17, 2021 at 5:35 pm

      Best low carb gluten free lemon bars! I suggest to make them.






      Reply
    41. Denise Higginson says

      September 29, 2021 at 5:52 pm

      I make these all the time! My go to of all desserts!






      Reply
    42. Mea says

      November 24, 2021 at 10:23 pm

      Just made them for Thanksgiving, they're great!
      Mine were very lemony.
      I added a bit of orange zest to make it more like Meyer lemon.
      Actual Meyer lemons are hard to find.






      Reply
    43. Elma says

      December 17, 2021 at 1:10 pm

      Sooooo delicious!!!!






      Reply
    44. Carmen Moleon says

      March 05, 2022 at 11:55 pm

      OMG , 💛💛 They are absolutely Devine . Thank you .

      Reply
    45. Melissa says

      April 26, 2022 at 9:23 pm

      I didn’t have swerve, so I put mink fruit in a clean coffee grinder and made powdered mink fruit. Worked perfectly!

      Reply
    46. Zsuzsi Valentin-Bodor says

      July 05, 2022 at 7:34 am

      This is the best keto dessert, I have ever eaten. Thank you very much!

      Reply
    47. marilyn says

      August 29, 2022 at 3:22 pm

      Excellent, I would say you hit this one perfectly- no need to change a thing. Everyone who's tried them, loves them. Will be making these often.






      Reply

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    Recipe rating ★☆ ★☆ ★☆ ★☆ ★☆

    Hey there! I'm Joe Duff - The Diet Chef, and I've been creating low carb keto recipes for over 15 years. Initally, I started making these recipes to help myself lose weight - I lost over 75 pounds doing so - but now I make recipes for the entire low carb keto community!
    About The Diet Chef →

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