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French Onion Meatballs with caramelized onions rich beef gravy melted Gruyere and mozzarella cheese garnished with fresh thyme and baguette

French Onion Meatballs

Tender beef meatballs simmered in a rich caramelized onion sauce and finished with melted cheese. A cozy, savory dinner that feels hearty and complete.
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Prep Time 20 minutes
Cook Time 35 minutes
Total Time 55 minutes
Servings: 4 servings
Course: Dinner
Cuisine: American
Calories: 520
Ingredients Equipment Method Notes

Ingredients
  

  • 1 1/2 lbs ground beef
  • 1/2 cup breadcrumbs
  • 1 large egg
  • 1/4 cup grated parmesan cheese
  • 2 tbsp milk
  • 1 tsp salt
  • 1/2 tsp black pepper
  • 1 tbsp olive oil
  • 2 tbsp butter
  • 3 large onions, thinly sliced
  • 2 cloves garlic, minced
  • 2 tbsp all-purpose flour
  • 2 cups beef broth
  • 1 tsp Worcestershire sauce
  • 1 tsp dried thyme
  • 1 cup shredded mozzarella or provolone cheese
  • 2 tbsp chopped parsley, optional

Equipment

  • Skillet
  • Baking Sheet
  • Mixing Bowl

Method
 

  1. Mix the meatball ingredients and shape into balls.
  2. Bake the meatballs until browned and cooked through.
  3. Caramelize the onions, then build the sauce with flour, broth, Worcestershire sauce, and thyme.
  4. Combine the meatballs with the sauce, top with cheese, and melt before serving.

Notes

  • Cook the onions slowly for the best flavor.
  • Do not overmix the meatball mixture.
  • Reheat leftovers gently with a little broth.
  • Store in the refrigerator for up to 3 days.