Parsley wash, finely chop. Sour cream, milk and parsley, stir, season with salt and pepper. Potato peel, grate and squeeze a bit of juice. Zucchini and onions also grate. Potatoes, zucchini, onion, eggs and flour mix. Season with salt and pepper. Make patties and fry them about 2-3 minutes on each side. Ready! Spread on a plate with sour cream and chicken. I'll have a chicken appeared, and I made gravy (our dad is not dinner without meat).