The main recipe for shortbread dough
Mix the flour with sugar, soda and vanillin. Cut the butter into pieces, add to the mixture, rub. Add egg, water or sour cream. Knead quickly with your hands until homogeneous. Next, according to the recipe, wrap in polyethylene film and refrigerate for half an hour or bake immediately.
flour - 2 cups, butter - 200 g, or margarine - 200 g, sugar - 0.66-1 cup, cold water3-5 tbsp. spoons