Combine the cream cheese and mozzarella cheese in a tall microwave-safe coffee mug. Heat on high for 45 seconds or until the cheeses are softened and melting. If it is not melted, heat in 15-second increments until it is.
Step 2
Add in the flours, baking soda, and large egg. Stir well using a fork. Mix very well to incorporate the eggs with the melted cheeses.
Step 3
Once everything is combined, microwave the mixture on high for 1 minute and 45 seconds until the bread has puffed considerably and is cooked through. Allow to cool slightly. Feel free to enjoy it right out of the mug or run a knife around the outer edges of the bread to tip it out.
Step 4
Doing so will allow you to cut it into slices and spread with butter or whatever toppings you want. Cream cheese is a great Low Carb option that would make this fathead bread delicious!