FRENCH DIP BURGERS Ingredients 2lbs ground beef salt and pepper (to taste) 4 slices Swiss cheese (each slice cut into 4 squares) 1 package fresh sliced mushrooms 1 tablespoon garlic (minced) 2 tablespoons butter 12 slider buns butter (for spreading) Au Jus- 2 cups water 1 tablespoon better than bouillon beef base 2 teaspoons