Boil potatoes and cool.

Cucumbers and onions finely chop and spasserovat in vegetable oil.

Peel the potatoes, grate on a fine grater, add the egg, 2 tablespoons of sour cream, salt and flour. The number I have indicated on 400 g of boiled potatoes. Knead the dough.

The dough will be quite sticky. Therefore, grease hands with oil, take about 85g of dough, make flapjack, spread a teaspoon of filling and put it into "pie." It is not necessary to strain strongly bond the edges - the cake is not falling apart and the stuffing leaking out.

Grease patties with sour cream and bake it in the oven at 180° for about 20 minutes before Browning.