Go Back Email Link
–+ servings
Crockpot French Onion Meatballs (Easy Slow Cooker Recipe)
Sarah Mock, savoring a glass of red wine, smiles warmly indoors near a staircase. With her long brown hair and light blouse, she exudes relaxed elegance in this candid headshot.Sarah Mock
Need a dish that’s perfect for parties or a comforting family meal? These Crockpot French Onion Soup Meatballs are bursting with rich, savory flavors and couldn’t be easier to make—just toss everything in the slow cooker and let it do the work for you!
Pin Recipe Print Recipe
Crockpot meatballs drenched in melted cheese and infused with the rich flavor of French onion soup, a wooden spoon lifting some out.
Prep Time10 minutes
Cook Time3 hours
Prep Time3 hours 10 minutes
servings10 servings

Ingredients

  • 36 ounce frozen meatballs
  • 2 large sweet onions thinly sliced into half moons
  • 3-5 garlic cloves minced
  • 2 Cups low sodium beef broth
  • 1 10.5 oz can condensed French onion soup
  • 1 tablespoon balsamic vinegar
  • 1 ½ teaspoons fresh thyme minced
  • ¾ Teaspoon black pepper to taste
  • 2 tablespoons Cornstarch
  • 1 Cup shredded Gruyere cheese
  • Fresh thyme or parsley for garnish (optional)

Instructions

  1. Place frozen meatballs in crockpot.
  2. Top with sliced onions and minced garlic.
In a mixing bowl or large measuring cup, combine the beef broth, French onion soup, balsamic vinegar, thyme, black pepper, and cornstarch. Whisk well to combine.
  3. Pour mixture over the meatballs, onions, and garlic.
  4. Cover with lid and cook on LOW for 3-5 hours, until the meatballs are fully heated through. Stir halfway through cooking time to ensure even heating and to make sure the sauce is not burning on the bottom of the pan.
  5. Right before serving, top the meatballs with the shredded gruyere cheese. Cover with lid and cook for an additional 5-10 minutes, until the cheese is fully melted.
  6. Garnish with fresh chopped parsley or thyme if desired. Serve as an appetizer or over mashed potatoes or egg noodles. Enjoy!

Nutrition

Serving: 1 | Calories: 13kcal | Carbohydrates: 2g | Protein: 1g | Fat: 0.02g | Saturated Fat: 0.004g | Polyunsaturated Fat: 0.01g | Monounsaturated Fat: 0.001g | Sodium: 89mg | Potassium: 105mg | Fiber: 0.1g | Sugar: 0.2g | Vitamin A: 15IU | Vitamin C: 1mg | Calcium: 4mg | Iron: 0.1mg

Notes

Instead of gruyere, you can opt for another melty cheese such as comte, fontina, provolone, swiss, or even mozzarella.
I highly recommend shredding a block of cheese for the best meltability. Packaged pre-shredded cheeses often contain anti-caking agents to prevent clumping.
Instead of a can of condensed french onion soup, you can opt to use an envelope of french onion soup mix.
CourseCrock-Pot Recipes
CuisineAmerican
KeywordFrench Onion Meatballs
QR Code linking back to recipe