Ingredients: 2 tablespoons olive oil 1/2 cup unsalted butter 4 (10.5 ounce) cans beef broth 4 cups sliced onions 4 cups sliced onions 1 teaspoon dried thyme 4 slices French bread salt and pepper to taste 2 slices Swiss cheese, diced 4 slices provolone cheese 1/4 cup grated Parmesan cheese Preparation: Melt the butter with […]
