Grate the zucchini and potatoes relatively finely on the vegetable grater. Add the grated onion. Mix in the eggs, quark, oatmeal, salt and pepper. Allow the mixture to swell for 30 minutes, then fry 3 buffers in hot clarified butter in a pan for 3-4 minutes on each side until crispy. Drain on paper towels and serve. Is also popular with children.