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Crockpot French Onion Meatballs

Savory Crockpot French Onion Meatballs

These Savory Crockpot French Onion Meatballs are slow cooked in a rich caramelized onion gravy and finished with melted Gruyere cheese. An easy, restaurant-quality comfort food made right in your slow cooker.
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Prep Time 10 minutes
Cook Time 6 hours
Total Time 6 hours 10 minutes
Servings: 6 servings
Course: Main Course
Cuisine: French-American
Calories: 440
Ingredients Equipment Method Notes

Ingredients
  

  • 2 lbs frozen meatballs (homestyle or Italian)
  • 3 large yellow onions, thinly sliced
  • 3 cups beef broth
  • 1 packet French onion soup mix (1 oz)
  • 3 tbsp butter
  • 2 tbsp Worcestershire sauce
  • 2 cups shredded Gruyere cheese (or Swiss)
  • 2 tbsp cornstarch (optional, for thickening)
  • 2 tbsp water (optional, for slurry)
  • salt and pepper, to taste

Equipment

  • slow cooker
  • mandoline slicer
  • mixing bowl
  • measuring cups

Method
 

  1. Add sliced onions, beef broth, French onion soup mix, butter, and Worcestershire sauce to the slow cooker. Stir to combine.
  2. Add frozen meatballs, nestling them evenly into the onion mixture.
  3. Cover and cook on HIGH for 3–4 hours or LOW for 6–8 hours until onions are soft and meatballs are heated through.
  4. If a thicker gravy is desired, mix cornstarch and water into a slurry and stir into the slow cooker. Cook on HIGH for 30 minutes.
  5. Sprinkle shredded Gruyere cheese over the meatballs, cover, and let melt for 10 minutes.
  6. Serve hot once cheese is fully melted.

Notes

Use a mandoline slicer for evenly sliced onions. If using homemade meatballs, brown them first so they hold their shape. For extra-crispy cheese, transfer to an oven-safe dish and broil for a few minutes before serving.