Preheat the oven to 180°C / 350°F.

Place the diced apple in a small bowl and mix with cinnamon and maple syrup or honey.

Transfer the apple mixture into a small baking dish and spread evenly.

In another bowl, combine oats, protein powder, almond flour, and melted coconut oil or butter.

Stir until the mixture forms a crumbly topping.

Sprinkle the topping evenly over the apples.

Bake for 20–25 minutes, until the apples are soft and the top is lightly golden.

Let cool slightly before serving.