French Onion Soup in your Slow Cooker
To make quick work of this recipe in the morning, you may cut the onions and brown the beef bones the night before.
Servings: 6 -8
Calories: 582kcal
Ingredients
- 2 pounds beef bones
- 6 yellow onions, halved and sliced ¼ inch thick (Do NOT use sweet onions)
- 4 Tablespoons ½ stick butter, melted
- 1 teaspoon salt
- 1 teaspoon pepper
- 1 teaspoon brown sugar
- ¼ teaspoon dried thyme, or 1 teaspoon minced fresh thyme
- 2 ½ Tablespoons cornstarch
- ⅔ cup apple butter, Do not add more than this or your soup may be too sweet
- ¾ cup dry sherry or white wine, non-alcoholic cooking version works fine
- ¼ cup soy sauce
- 32 oz. low-sodium chicken broth
- 32 oz. beef broth
- 1 loaf French baguette, cut into ½-inch slices
- 2 ½ cups shredded Gruyere cheese, or mozzarella
Instructions
- Slice 6 onions and place into slow cooker. Drizzle 4 Tablespoon butter, 1 teaspoon salt, 1 teaspoon pepper, 1 teaspoon brown sugar and ¼ teaspoon thyme over onions and toss.
- Arrange beef bones on paper towel-lined plate and microwave until well browned, about 8 minutes.
- Whisk 2 ½ Tablespoons cornstarch, ⅔ cup apple butter, ¾ cup sherry and ¼ cup soy sauce together in bowl until smooth, then stir into slow cooker. Nestle microwaved bones into onions. Cover and cook on high setting until onions are softened and deep golden brown, about 8 hours.
- Discard beef bones. Bring 32 ounces chicken broth and 32 ounces beef broth to boil in covered saucepan over high heat, then stir into slow cooker. Add more salt and pepper to taste, if needed. Let soup sit until heated through and while you prepare the baguettes.
- Just before serving, position oven rack 6 inches from broiler element and heat broiler. Lay bread on baking sheet and broil until golden on both sides. Sprinkle cheese over one side of bread and continue to broil until melted and bubbly. Ladle soup into serving bowls and top with broiled cheese bread.
Nutrition
Calories: 582kcal | Carbohydrates: 51g | Protein: 28g | Fat: 28g | Saturated Fat: 16g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 8g | Trans Fat: 0.3g | Cholesterol: 81mg | Sodium: 2257mg | Potassium: 547mg | Fiber: 3g | Sugar: 19g | Vitamin A: 770IU | Vitamin C: 8mg | Calcium: 654mg | Iron: 3mg