Preparation time: 15 minutes Cooking time: 10 minutes Classic American Hamburger Recipe Ingredients (Serves 4) 1 pound (450 grams) of ground beef 4 hamburger buns 1/2 a cup (120 ml) of diced onions 1 tablespoon (15 ml) of vegetable oil 1 teaspoon (5 ml) of salt 1 teaspoon (5 ml) of black pepper 4 slices … Continue reading Tasty classic American hamburger recipe