In a bowl, combine protein powder, oat flour, Greek yogurt, and an egg. If using unflavored protein powder, add maple syrup to taste for more sweetness.
Start mixing the batter with a fork or spatula until smooth. If the batter feels too thick, gradually add one tablespoon of milk at a time until you reach the right consistency. This depends on the protein powder used.
Pour a scoop of batter into a hot, greased pan. Cook over low to medium heat until the underside turns golden and bubbles form on the surface. Flip with a spatula and cook until both sides are golden brown. Be careful not to overcook them.
Serve with your favorite toppings or store in the fridge for a maximum of 4 days.