Preheat oven to 400 degrees F (205 degrees C).
Into large bowl, add in the Almond Flour (2 cup), Baking Powder (1 teaspoon), Salt (1/4 teaspoon), and Ground White Pepper (1/2 teaspoon). Mix everything well, then add in the Shredded Cheddar Cheese (1 cup), Shredded Mozzarella Cheese (1/2 cup), and Shredded Parmesan Cheese (1/2 cup).
Mix it all well, and then add in Sour Cream (1/2 cup) along with the Egg (1). Mix until it forms a sticky dough. Mix everything together well until you have a thick sticky dough.
Oil a muffin tray with the Butter (1/4 cup), and then place the mixture into the cups. Flatten out using a wet fork or knife.
Bake for 13 to 15 minutes, or until golden brown.
Serve warm with butter.