In a medium bowl, whisk the eggs. Add the protein powder and baking powder and whisk until no lumps are visible. This will be thick.
Add ¼ cup of the milk and whisk until the batter is smooth, adding the rest of the milk if necessary. This will depend on the brand of protein powder.
Cook the Pancakes:
Heat a non-stick pan over medium-high heat. Once hot, grease it with butter or oil.
Pour or scoop ¼ cup of batter for each pancake. Wait until bubbles form and the edges are defined to flip, about 2 to 3 minutes. Continue cooking for an additional minute on the other side. Remove from the pan and repeat with the remaining batter.
Store:
Extra pancake batter can be refrigerated overnight in a covered bowl. To cook it, whisk the batter and add a tablespoon of liquid, if necessary. Cooked pancakes can be stored in the fridge in an air-thight container for up to 4 days and frozen for up to a month. To reheat, microwave for 30 seconds to 1 minute.
Notes
The recipe yields approximately 10 medium pancakes. They are on the thin side, and each serving is for ½ the batter or 4-5 pancakes total. Nutritional information will vary depending on the protein powder and milk type used.