Mix curd cheese with an egg in a bowl with a fork. Grate lemon peel. Add sugar and the lemon peel to the cheese mixture and stir intensively. While stirring, add flour and ginger. Form pancakes and dredge them. Fry each side of the pancakes for several min. For the sauce, whisk sour cream with sugar. Add cut peppermint and lemon juice to the sour cream and stir intensively. Serve with the sauce, decorate with a peppermint sprig.