Beat the egg white until stiff and cut the apple into small pieces.
Mix the remaining ingredients together. Now fold the beaten egg white into the batter and add the apple pieces. If the mass is still a little too firm, add a small sip of milk. Spread the batter in a prepared 12-cup muffin pan.
Bake for about 25 minutes at 175 ° C.
Protein-rich snack with good carbohydrates and little fat!