Dec 16, 2021 · For the Mushroom Gravy: 1 tablespoon vegetable oil. 1 tablespoon unsalted butter. 3/4 to 1 pound mushrooms. sliced. 2 tablespoons all-purpose flour. 1 1/2 cups beef stock. 1 teaspoon gravy browning sauce, Gravy Master or Kitchen Bouquet. 1/2 teaspoon Worcestershire sauce. Salt, to taste. Freshly ground black pepper, to taste 1 can (10-3/4 ounces) condensed cream of mushroom soup, undiluted; 1/2 cup milk; 1 can (4 ounces) mushroom stems and pieces, drained; 1-1/2 teaspoons beef bouillon granules; 3 cups hot cooked mashed potatoes DIRECTIONS. Mix hamburger, 1/4 cup flour, garlic powder, salt and pepper. Form into 4 square patties and brown. Add onions to pan and Saute. Remove patties and onions from pan. Salisbury Steak Recipe. This homemade salisbury steak recipe is a super easy way to make a special dinner without all the fuss (or expense). Simply make hamburger patties and shape them like steaks, then cook and serve with an amazing gravy.