Mix the curd cheese, sour cream, semolina, vanilla pudding powder, lemon zest, salt and rum. Stir in egg yolks, leave to rest for about half an hour.
Beat the egg whites with the granulated sugar and fold into the curd mixture.
Melt butter in a large pan, pour in the dough, sprinkle with raisins if necessary and bake in a preheated oven at 200 ° C for about 12 minutes. Tear apart with the help of two forks.
Arrange on warm plates, cover with icing sugar and serve immediately.
Side dishes: apple sauce, apple compote, stewed plums or plum compote