Original recipe: in a bowl Beat eggs, add sugar and stir with a wooden spoon, gradually adding the melted butter and then with cold sour cream. Then put a teaspoon of baking soda, pre-mixed with a little flour, pour the remaining flour and knead the dough. The received dough roll out a thin layer, brush entire surface with egg yolk to hold a fork zig-zag line. To carve a special notch circles, stars, etc., put them on an iron sheet, grease with oil and bake in the oven. 2 cups rye fine flour -3 tbsp. spoons of sugar, 2 eggs, 2 tablespoons sour cream, 1/2 teaspoon of baking soda. In video recipe used: rye Flour 300 g Sugar 3 tbsp Egg 2 PCs. sour Cream 2 tbsp Soda 1/2 tsp Oil 25 g Vanilla