Combine together cottage cheese, sugar, eggs and vanilla extract. Blend using a blender, mixer or a food processor.
In a small bowl, combine baking soda with vinegar and add to the mixture. Continue by adding baking powder and flour.
Flour the work area well, as the dough will turn out sticky. Divide the dough into 24 equal pieces.
Form round shapes out of each piece, placing them apart on a baking sheet. Brush the tops with egg and sprinkle some sugar.
Bake buns at 350 °F for 20 minutes until they become golden brown. Let them cool to room temperature before serving. Keep the remaining portion fresh, by sealing them in an airtight container.
