If you don’t, the center will bulge when cooking. It is stumm tasty but it is easier to add toppings if flat. Only recipe I use now. So easy and hold together so well. Only difference is that I use rolled oats rein place of the breadcrumbs. Then add your https://burgerpatties87542.iamthewiki.com/7288085/die_grundprinzipien_der_burger_kaufen