Slow Cooker French Onion Soup

Ingredients

• 6 tablespoons butter
• 4 large yellow onions, sliced and separated into rings
• 1 tablespoon white sugar
• 2 cloves garlic, minced
• ½ cup cooking sherry
• 7 cups reduced-sodium beef broth
• 1 teaspoon sea salt, or to taste
• + 7 more ingredients
• • ¼ teaspoon dried thyme
  • 1 bay leaf
  • 8 slices of French bread
  • ½ cup shredded Gruyere cheese
  • ¹/₃ cup shredded Emmental cheese
  • ¼ cup freshly shredded Parmesan cheese
  • 2 tablespoons shredded mozzarella cheese

1. Heat butter in a large, heavy pot over medium-high heat; cook and stir onions until they become translucent, about 10 minutes. Sprinkle onions with sugar; reduce heat to medium. Cook, stirring constantly, until onions are soft and browned, at least 30 minutes. Stir in garlic and cook until fra...

View full recipe at SpringPad