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French Onion Stuffed Meatballs

These taste like French onion soup in meatball form and yes, they are as good as they sound. There's caramelized onion and Gruyère packed inside each one and a little extra cheese melted on top. They are a little extra effort but people will remember them.
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Prep Time 35 minutes
Cook Time 22 minutes
Total Time 57 minutes
Servings: 14 servings
Ingredients Method

Ingredients
  

  • 1.5 lbs ground beef
  • 1/4 cup breadcrumbs
  • 1 egg
  • 1 tsp Worcestershire sauce
  • 1/2 tsp garlic powder
  • 1/2 tsp salt
  • 1/4 tsp black pepper
  • 2 tbsp butter
  • 2 large onions thinly sliced
  • 1 cup shredded Gruyère cheese divided
  • Fresh thyme for garnish

Method
 

  1. Melt butter in a skillet over medium-low heat and cook sliced onions, stirring often, for 25-30 minutes until deeply caramelized. Let cool slightly.
  2. Preheat oven to 400°F and line a baking sheet with foil.
  3. Mix ground beef, breadcrumbs, egg, Worcestershire sauce, garlic powder, salt, and pepper in a bowl.
  4. Divide meat into portions, flatten each, place a small spoonful of caramelized onion and a pinch of Gruyère in the center, and seal the meat around the filling.
  5. Place on baking sheet, top each with a little extra Gruyère, and bake for 18-22 minutes.
  6. Garnish with fresh thyme before serving.