For the test, mix flour, baking powder, sugar 2 tbsp. l., soft butter 100 gr., salt, sour cream and a beaten egg. Knead the dough and refrigerate for half an hour.
Cooking caramel. Melt the rest of the butter, add sugar and cook over low heat, stirring constantly for 5 minutes or until the mixture turns golden. Quickly pour the finished caramel into a mold in which you will bake Taten, distribute it evenly along the bottom.
Cut the bananas lengthwise and lay them down.
Roll out the dough so that it has a little more shape. Put it on bananas and try to wrap the edges inward. Bake in a preheated oven to 200 degrees 35 minutes.
After, take out the finished cake and turn it over quickly onto the dish with the sides until the caramel has frozen. Serve warm.