Initially, mix the butter and sugar with a blender, then add the egg, 220 grams of flour and one teaspoon of baking powder, also 1/4 teaspoon of salt and knead the dough well. We take a baking dish and form our cake and the sides, put in the refrigerator for 15-20 minutes.
Next, take 220 grams of thick sour cream and add 1 egg, 50 grams of sugar and mix everything with a whisk. Next, add 300 grams of blueberries (fresh or frozen). We take out our form and pour out the whole blueberry-sour cream mix.Send to the preheated oven for 35 minutes at 190 degrees.Bon Appetit!😘