Pour prunes and raisins with water and let stand a little. Then let it drain completely, cut the prunes.
Separate the yolks from the proteins. Whisk the yolks with sugar, salt, vanilla sugar and pour the vegetable oil and melted butter in the process of whipping. Then add yogurt, flour with baking powder, mix well and add dried fruits. Beat the whites well and add to the dough.
Pour the finished dough into oiled forms and bake at 180 degrees until golden brown for about 45 minutes, check the cake for readiness with a tree skewer.
Yogurt muffin with prunes is ready, sprinkle with powdered sugar and can be served.