Donuts filled recipe

 Ingredients for the donuts:
1 medium-sized egg
50g butter
200g milk
80g sugar
500g flour
8 g dry baker’s yeast (or 12 g fresh yeast)
1 pinch of salt
Italian diplomatic cream:
300g pastry cream
200 g liquid cream
2 tablespoons icing sugar
the cover:
Sugar
Preparation :
With a pastry robot: