Add all of the dry ingredients to a medium-sized bowl and mix them until combined.

Set that bowl aside, and in an even larger - microwavable safe bowl - add the mozzarella cheese, and the cream cheese.

Combinine them as best as you can and then microwave the cheese in 30-40 second intervals, working them together with a spatula after each one.

It will probably take about 4ish intervals of microwaving and mixing to combine them completely into one another.

When the cheeses combine - and are hot - add the dry ingredients into the cheese.

Then add the egg and sour cream, and mix everything together with a spatula as best you can.

However, you'll need to use your hands to work/knead the ingredients together into a ball of dough...the spatula won't be enough.

The more you work the dough, the more absorbent it will become, and the easier it will be to incorporate the dry ingredients into it.

Next, line a bread pan with parchment paper and coat it with baking spray.

Make sure to shape your dough into a loaf of bread before adding it to the pan.

You want the middle to be "fat" and the ends to be skinnier.

This will ensure that as it cooks it will spread out, and leave you with a "normal"ish looking sized slice of bread.

The bread doesn't rise much, but it does spread out.

Cook-times will vary depending on if you use the protein powder, or not.

If you use protein powder the bread will need to be cooked for a total of 70-80 minutes at 375 degrees F.

However, if you decide to make it without the protein powder it will take 80-90 minutes at 375 degrees F to cook.

You'll want to cook the bread for the first ten minutes uncovered, and then cover it with tin foil for the remaining cook time.

Once the bread is done cooking let it rest.

DO NOT CUT INTO IT HOT!!

It needs time to cool down and set.

Once it cools to room temperature - which can take an hour or more - cut it into slices and enjoy.