Whisk cottage cheese and egg in a bowl until perfectly smooth.
Stir in the chopped apple, oat flour, baking powder, cinnamon, sweetener, and salt.
Preheat your air fryer or oven to 350°F (175°C).
Grease your air fryer basket or line a baking sheet with parchment paper.
Scoop out tablespoon-sized portions of the batter.
Air fry for 8–10 minutes OR bake for 15–20 minutes until golden brown.
Let cool slightly before serving.
