Slow Cooker French Onion Soup by DelishPlan

170

Let this healthy, soothing slow cooker French onion soup cook itself while you’re busy with other things. Make it with bone broth for a boost of collagen.

3 pounds yellow onions, peeled and sliced
2 tablespoons olive oil
1 teaspoon salt, plus more to taste
Freshly ground black pepper
2 tablespoons balsamic vinegar
10 cups beef bone broth or beef broth
3 tablespoons Sherry, optional
For assembling the soup:
6 baguette slices for each bowl
1 1/3 to 2 cups grated or shaved Gruyere cheese
Chopped parsley for garnishing

Place onions in a 6-quart slow cooker. Stir in butter and olive oil. Season with salt and pepper. Cover and cook on low for 12 hours. Add balsamic vinegar and beef bone broth into the slow cooker. Add...
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Nutritions

Calories
3190

Sodium
32mg
1% DV

Fat
332g
511% DV

Protein
6g
12% DV

Carbs
14g
5% DV

Fiber
5g
22% DV

Slow Cooker French