Caramelized Onion Soup with Jarlsberg Crouton | Virginia Living

Ingredients

• 4 tablespoons butter
• 6 medium onions, thinly sliced
• ¼ teaspoon salt
• 4 cups water
• 1 can (14 ½ ounces) beef broth
• 1 ¾ cups brown beef stock or beef broth
• ¼ teaspoons dried thyme
• 4 slices (½-inch thick) diagonally cut french bread
• 4 ounces gruyere or fontina cheese, shredded (1 cup)