Release the chicken egg into the bowl. Beat lightly with a fork. Pour in cottage cheese. Add kefir. Pour in the sifted flour. Add sour cream or homemade heavy cream. Add sugar. Bring everything to homogeneity with a blender or thoroughly knead and beat with a fork.
Pour vegetable oil into the pan and heat well. Form the cottage cheese pancakes, spreading 1 tablespoon in a pan. test. Fry cottage cheese pancakes on both sides for 2-3 minutes until golden brown. You can serve cottage cheese pancakes by themselves or with sour cream or jam.