Crack the eggs into a large mixing bowl.

Pour in the oil.

Add the sugar and beat with a mixer on high speed for 10 minutes.

Add the cottage cheese.

Add the flour and baking powder, then mix on the lowest speed until just combined.

From the 3 apples, cut one into small cubes, add the cubes to the bowl and gently fold them into the batter.

Grease a baking pan with butter or line it with baking paper, then pour in the batter and spread it into an even layer.

Preheat the oven to 180°C (356°F). Slice the remaining 2 apples into long wedges, arrange them on top of the batter, and bake for 40 minutes.

After 25 minutes of baking, cover the pan loosely with aluminum foil and continue baking so the top turns lightly golden instead of burning.

Dust with powdered sugar if you like, then slice and serve.