Strawberry jam doughnuts

Ingredients :

 360 g flour
 75 g of semolina sugar
 60 g of lukewarm melted butter
 30 g baker's yeast
 10 cl of milk
 2 eggs
 1 egg white
 ½ teaspoon of vanilla sugar
 Aicha strawberry jam
 

To decorate :

 Icing sugar