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Chicken French Onion Soup Slow Cooker Recipe

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Prep Time 15 minutes
Cook Time 6 hours
Total Time 6 hours 15 minutes
Cuisine French
Servings 4

Equipment

  • 6 quarts Slow Cooker
  • Sharp Knife
  • Cheese Grater
  • Cutting Board

Ingredients
  

Main Ingredients

  • 4 boneless skinless chicken breasts (or thighs)
  • 2 large onions thinly sliced
  • 4 cups beef broth
  • 2 tablespoons olive oil

Seasonings and Extras

  • 2 teaspoons fresh thyme or 1 teaspoon dried
  • 4 garlic cloves minced
  • 1 cup shredded Gruyère cheese
  • 1 tablespoon balsamic vinegar
  • Salt and pepper to taste

Optional Add-ons

  • Crusty bread for dipping
  • Fresh parsley chopped

Instructions
 

Prepare the Ingredients:

  • Slice your onions nice and thin, and season the chicken with salt, pepper, and any other spices you love.

Caramelize the Onions (Optional):

  • For a deeper, more savory flavor, you can caramelize your onions on the stove before tossing them into the slow cooker.

Layer the Ingredients:

  • Place your onions, chicken, and broth into the slow cooker.

Cook:

  • Set your slow cooker to low for 6-8 hours or high for 3-4 hours.

Add Cheese:

  • About 10 minutes before serving, sprinkle that glorious Gruyère cheese on top.

Notes

Pro Tips for Success
Bone-In Chicken: For extra flavor, try using bone-in chicken. The bones add richness to the broth.
Caramelization is Key: Don’t skip this step! It brings out the true French onion flavor.
Season to Taste: Before serving, give it a taste and adjust the seasoning.
Make your Chicken French Onion Soup Slow Cooker even more delicious with these simple tweaks: 
  • Creamier Version: Add a splash of heavy cream for a rich, velvety texture. 
  • Gluten-Free: Skip the bread or use gluten-free alternatives to keep it safe for your diet. 
  • Low-Sodium: Use low-sodium broth and reduce added salt for a healthier option.