In a large bowl, add the ground meat, bread pulp, egg, breadcrumbs, lemon peel, marjoram, fried onions and, if you want, anchovy or anchovy paste. Combine to a smooth mass. Season with salt and pepper.
250 g ground beef, 250 g ground pork, 1 egg, 3 tablespoon bread crumbs, 2 teaspoon lemon peel, 3 anchovies, 1 teaspoon marjoram