Slow Cooker French Onion Soup
Perfect on a cold day, this soup is packed with fantastic onion flavor.
Servings 8 servings
Calories 325kcal
Equipment
Ingredients
- 6 tablespoons unsalted butter
- 4 large yellow onions sliced thin, rings separated
- 1 tablespoon sugar
- 2 cloves garlic minced
- ½ cup cooking sherry
- 7 cups beef broth
- 1 tablespoon beef base optional
- 1 teaspoon kosher salt
- ¼ teaspoon dried thyme
- 1 bay leaf
- 8 slices French bread or 16 slices of a thin baguette
- cheese A mix of shredded Gruyere, Emmental, Parmesan and Mozzarella cheeses
Instructions
- Melt the butter in a large pot or Dutch oven over medium-high heat.
- Add the onions and saute about 10 minutes or until translucent, stirring often.
- Sprinkle with the sugar, stir and reduce heat to medium.
- Cook 30-40 minutes or until soft and lightly caramelized.
- Add the garlic, stir and cook 2 more minutes.
- Stir in the sherry and cook until evaporated, stirring and scraping up any yummy bits on the bottom of the pot.
- Transfer the onions to a lightly greased slow cooker on low.
- Stir in the broth, beef base, salt, thyme and bay leave.
- Cover and cook 8 hours.
- Place bread pieces under the broiler to get lightly browned.
- Sprinkle with cheese and place back under the broiler until the cheese is melted.
- Serve soup in bowls topped with a slice of the cheese bread (or 2 slices if using a small baguette).
Notes
You can use croutons instead of the bread.
Nutrition
Calories: 325kcal | Carbohydrates: 45g | Protein: 11g | Fat: 10g | Saturated Fat: 6g | Trans Fat: 1g | Cholesterol: 23mg | Sodium: 1555mg | Potassium: 324mg | Fiber: 3g | Sugar: 7g | Vitamin A: 266IU | Vitamin C: 6mg | Calcium: 65mg | Iron: 3mg