To a medium mixing bowl, whisk the egg whites for 1 minute - 1 minute 30 seconds or until the egg whites are light and frothy.

Add the shredded muenster cheese, shredded mild cheddar cheese, ¼ cup all-purpose flour and black pepper. Gently fold the ingredients together until all the cheese is fully coated with the egg whites and flour.

Cover the bowl of cheese mixture with plastic wrap and refrigerate for 1- 2 hours.

Once the cheese mixture has chilled, use a 1 inch cookie scoop and scoop out a packed, and leveled portion. In the palm of your hand, gently roll the cheese ball until smooth.

Place the rolled cheese ball into a small bowl with the remaining ¼ cup all-purpose flour to lightly coat the outside of the ball. Shake off any excess flour, then place the cheese ball onto a plate. Repeat until all the cheese balls have been rolled and coated.

To an electric deep fryer, or 4-5 quart dutch oven, add enough vegetable oil to fill the pot with 4-5 inches of oil. Heat the oil to 375* F. You should still have plenty of room in the electric fryer, or dutch oven, to prevent the oil from coming close to the top when cheese balls are added as the oil will bubble rapidly and expand. It is also important that the cheese balls have plenty of room in the pot when frying.

Using a wire spider, or metal slotted spoon, carefully lower down 3-4 cheese balls into the hot oil one at a time. Do not over crowd the oil or the cheese balls will stick together as they fry. Be sure to use the spider, or slotted metal spoon, to carefully roll the cheese balls in the hot oil to ensure that they are frying evenly and not sticking to each other.

Allow the cheese balls to fry for 1-2 minutes or until golden. The cheese balls will start to rise to the surface when they are very close to being done.

Using the wire spider, or slotted metal spoon, carefully remove the fried cheese balls from the hot oil and place them onto a paper towel lined plate to absorb the excess oil.

Repeat steps 7-9 until all the cheese balls have been fried. Allow the fried cheese balls to cool slightly before serving as the cheese inside will be very hot.