For a richer flavor, consider using a combination of beef and chicken broth. Adding a splash of dry sherry or white wine during the last hour of cooking can enhance the complexity of the soup. Be sure to caramelize the onions properly, this step is crucial for the soup's characteristic sweetness. If you don't have time to make croutons, toasted baguette slices work just as well.
French Onion Soup (Slow Cooker)
-
PREP TIME10 mins
-
COOK TIME4 hrs 10 mins
-
TOTAL TIME4 hrs 20 mins
-
SERVING6 People
-
VIEWS33
Rediscover a timeless classic with this deeply flavorful French Onion Soup, made effortlessly in your slow cooker. The sweet, caramelized onions meld beautifully with rich beef broth, creating a comforting and aromatic experience. A simple yet elegant dish, perfect for a cozy night in.
Ingridients
Adjust Servings
Nutrition
-
Carbohydrate10 g
-
Cholesterol20 mg
-
Fiber2 g
-
Protein3 g
-
Saturated Fat5 g
-
Sodium585 mg
-
Sugar4 g
-
Fat8 g
-
Unsaturated Fat0 g
Follow The Directions
01
Step
40 mins
Melt the butter in a large skillet over medium heat. (2 minutes)
02
Step
5 mins
Add the thinly sliced onions to the skillet and cook, stirring occasionally, until they are softened and deeply caramelized. This process should take 30-40 minutes to develop the rich, sweet flavor. Be patient and stir frequently to prevent burning.
03
Step
8 hrs
Transfer the caramelized onions to your slow cooker. (2 minutes)
04
StepPour in the beef broth, add the minced garlic, salt, and pepper. Stir gently to combine. (1 minute)
05
StepCover the slow cooker and cook on Low for 8 hours or on High for 4 hours, allowing the flavors to meld and deepen. (4-8 hours)
06
StepIf desired, ladle the soup into oven-safe bowls, top with a slice of baguette and Gruyere cheese, and broil until the cheese is melted and bubbly. (5 minutes)
YOU MAY ALSO LIKE
RECIPE REVIEWS
LEAVE A REVIEW
Please Rate
LATEST RECIPES
-
1 -
2 -
3 -
4 -
5
Brody Conn
Jul 1, 2025Next time, I'll try adding a splash of balsamic vinegar to the onions.
Conner Maggio
Jun 27, 2025The slow cooker makes this recipe so convenient.
Trudie Daugherty
Jun 6, 2025I added a bay leaf to the slow cooker for extra flavor.
Ressie Macgyver
Jun 2, 2025The caramelized onions are key to the flavor. Don't rush that step!
Keyon Oconner
Jun 2, 2025This recipe is so easy and delicious! My family loves it.
Pamela Mertz
Apr 14, 2025I've made this several times, and it's always a hit!
Thaddeus West
Feb 14, 2025I used a combination of Gruyere and Parmesan cheese. It was amazing!
Lucas Kirlin
Jan 27, 2025Broiling the cheese on top is a must!