1. Wash the zucchini and potatoes, peel and grate on a coarse grater into a large bowl. 2. Add salt, pepper, flour and mix everything. 3. Heat the oil in a frying pan. Put a large spoonful of the mixture in the frying pan and press it slightly on top. Fry over medium heat until golden brown. Each time before taking a spoonful of the mixture, stir it in the bowl. 4. Serve hot.