Description
Slow Cooker French Onion Soup is an easy, comforting recipe that blends caramelized onions, beef broth, and sweet grape juice for deep flavor. Cook low and slow for six to eight hours, then finish with toasted bread and melted Gruyère for a classic restaurant‑style finish. Perfect for busy weeknights or cozy weekends, this soup delivers rich aroma, silky texture, and satisfying warmth in every bowl. Serve hot with green salad and a glass of chilled grape juice for a satisfying meal that becomes
Ingredients
Scale
- 4 large onions, sliced
- 4 cups beef broth
- 1 cup grape juice
- 2 tablespoons butter
- 1 teaspoon thyme
- Salt to taste
- 8 slices of bread
- 2 cups shredded cheese (Gruyère or Swiss)
Instructions
- Melt butter in a skillet and sauté onions until deep golden, about 30‑40 minutes.
- Transfer onions to the slow cooker; add beef broth, grape juice, thyme, and salt.
- Cook on low for 6‑8 hours.
- Toast bread slices, then ladle soup into bowls.
- Top each bowl with toast and shredded cheese.
- Broil until cheese is bubbly and golden.
- Serve immediately.
Notes
- For a dairy‑free version
- substitute butter with oil and use a dairy‑free cheese alternative. Adjust salt based on broth sodium level.
- Prep Time: 15 minutes
- Cook Time: 8 hours
- Category: Soups
- Method: Slow Cooker
- Cuisine: French
Nutrition
- Serving Size: 8 servings
- Calories: 320
- Sugar: 5g
- Sodium: 800mg
- Fat: 10g
- Saturated Fat: 4g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 30g
- Fiber: 2g
- Protein: 12g
- Cholesterol: 15mg
Keywords: Slow Cooker French Onion Soup, easy French onion soup, slow cooker soup recipes, beef broth soup, comforting fall soups, quick dinner soups, one pot soups, classic French soup, hearty onion soup