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–+ servings

Crockpot French Onion Meatballs (Easy Slow Cooker Recipe)

Created by: Sarah Mock
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
total time3 hours 10 minutes
Makes 10 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
 

  • Place frozen meatballs in crockpot.
    A slow cooker brimming with uncooked, breaded French onion meatballs rests invitingly on a pristine white surface.
  • 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.
    A crockpot brimming with French onion meatballs is layered with sliced onions and topped off with aromatic minced garlic.
  • Pour mixture over the meatballs, onions, and garlic.
    A crockpot brimming with French onion meatballs, sliced onions, and spices rests elegantly on a white surface.
  • 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.
    A crockpot brimming with French onion meatballs, bathed in a savory brown sauce and mingling with tender sliced onions.
  • 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.
    Crockpot French onion meatballs, perfectly slow-cooked with cheesy goodness and topped with fresh herbs in a rich, dark sauce.
  • Garnish with fresh chopped parsley or thyme if desired. Serve as an appetizer or over mashed potatoes or egg noodles. Enjoy!
    French onion meatballs in gravy rest atop creamy mashed potatoes, garnished with parsley and served in a white bowl with a fork for easy dining.

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.

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