Name: French Onion Meatballs
Prep time: 20 min
Cook time: 50 min
Total time: 1 h 10 min
Cuisine: French
Ingredients: 1½ cups fresh breadcrumbs (or panko breadcrumbs); ¼ cup plus 2 tablespoons whole milk; 1½ pounds organic ground beef (85/15); 1 tbsp chopped parsley; 1 tsp fresh thyme leaves, plus extra for garnish; 1 tsp herbes de Provence; About 1 tsp salt (adjust to taste); About ¼ tsp black pepper (adjust to taste); ½ large white onion, finely minced; 4 cloves garlic, pressed; ¾ cup grated Gruyere cheese, divided use; 1 egg, whisked; 1 cup shredded whole milk mozzarella cheese; 4 tbsp olive oil, divided; 2 tbsp ghee or butter; 2½ large white onions, halved and thinly sliced; Salt and black pepper, to taste; 4 cloves garlic, pressed; 1 tsp herbes de Provence; 1 tsp dried thyme; ¼ cup sherry (or white wine); 1½ tbsp flour; 2¼ cups beef stock; 2 tsp fresh thyme leaves

Jump to Recipe

French Onion Meatballs marry the rich, caramelized flavors of French onion soup with tender, juicy meatballs for a dish that’s comforting yet sophisticated. These meatballs are infused with Gruyere cheese and fresh herbs, delivering a wonderful depth of flavor in every bite. The accompanying French onion sauce, thick and aromatic, brings caramelized onions, garlic, and herbs together with a splash of sherry and hearty beef stock, creating a luxurious finish that coats the meatballs perfectly.

This recipe elevates traditional meatballs by integrating the essence of French onion soup, making it an ideal main course for those craving something both hearty and elegant. The combination of melty mozzarella and Gruyere cheeses inside the meatballs adds a luscious texture and taste that pairs beautifully with the deeply savory onion sauce. Whether served over mashed potatoes, egg noodles, or crusty bread, French Onion Meatballs deliver a flavorful, cozy meal with impressive flair.

Why You’ll Love This Recipe

Unique Flavor Fusion: Combines the classic taste of French onion soup with tender meatballs.

Cheesy and Juicy: Gruyere and mozzarella cheeses keep meatballs moist and flavorful.
Rich, Aromatic Sauce: Caramelized onions and sherry-infused beef stock make the sauce irresistible.
Perfect for Comfort Food Cravings: Hearty and satisfying with a gourmet touch.

Great Make-Ahead Dish: Meatballs and sauce can be prepared in advance and reheated.

Ingredients

Meatballs

Fresh breadcrumbs (or panko breadcrumbs)
Whole milk

Ground beef (85/15 ratio)
Chopped parsley
Fresh thyme leaves

Herbes de Provence
Salt
Black pepper

White onion (finely minced)
Garlic (pressed)
Grated Gruyere cheese (divided)

Egg (whisked)
Shredded whole milk mozzarella cheese

French Onion Sauce

Olive oil

Ghee or butter
Large white onions (halved and sliced)
Salt

Black pepper
Garlic (pressed)
Herbes de Provence

Dried thyme
Sherry (or white wine)
Flour

Beef stock
Fresh thyme leaves

Variations

Use Ground Turkey or Chicken: For a lighter meatball option.

Add Mushrooms: Sautéed mushrooms can be added to the sauce for extra umami.
Non-Alcoholic Version: Substitute sherry with additional beef stock or apple cider vinegar.
Make It Spicy: Add red pepper flakes or cayenne to the meat mixture for heat.

Serve with Different Bases: Try serving over mashed potatoes, polenta, or egg noodles instead of bread.

How to Make French Onion Meatballs

Step 1: Prepare the Meatball Mixture

In a large bowl, soak breadcrumbs in milk until softened. Add ground beef, parsley, thyme, herbes de Provence, salt, pepper, minced onion, garlic, half of the Gruyere cheese, whisked egg, and mozzarella cheese. Mix gently until just combined.

Step 2: Form the Meatballs

Shape the mixture into evenly sized meatballs, about 1.5 inches in diameter.

Step 3: Cook the Meatballs

Heat olive oil in a large skillet over medium heat. Brown the meatballs on all sides until nicely seared but not fully cooked through. Remove from skillet and set aside.

Step 4: Caramelize the Onions

In the same skillet, add butter and remaining olive oil. Add sliced onions and a pinch of salt and cook over medium-low heat, stirring occasionally, until onions are deep golden brown and caramelized, about 25-30 minutes.

Step 5: Add Garlic and Herbs

Add pressed garlic, herbes de Provence, dried thyme, salt, and pepper. Cook for another minute until fragrant.

Step 6: Deglaze and Thicken Sauce

Pour in sherry or white wine to deglaze the pan, scraping up browned bits. Sprinkle flour over onions and stir to combine. Cook for 1-2 minutes to remove raw flour taste.

Step 7: Add Beef Stock and Simmer

Slowly whisk in beef stock and bring sauce to a gentle simmer. Cook until sauce thickens slightly.

Step 8: Finish Cooking Meatballs in Sauce

Return meatballs to the skillet, spoon sauce over them, and simmer on low heat for 10-15 minutes until meatballs are cooked through and flavors meld.

Step 9: Garnish and Serve

Sprinkle fresh thyme leaves and the remaining Gruyere cheese over the top before serving.

Tips for Making the Recipe

Use fresh breadcrumbs for the best texture in meatballs.
Caramelize onions slowly for maximum sweetness and depth.

Avoid overmixing the meatball mixture to keep them tender.
Brown meatballs well to develop flavor and seal in juices.
Use a good-quality beef stock for a richer sauce.

How to Serve

Serve French Onion Meatballs over creamy mashed potatoes, buttered egg noodles, or toasted crusty bread to soak up the flavorful sauce. A side of steamed green beans or a simple salad complements the dish well.

Make Ahead and Storage

Storing Leftovers

Store meatballs and sauce together in an airtight container in the refrigerator for up to 3 days.

Freezing

Freeze cooked meatballs and sauce separately or together in freezer-safe containers for up to 2 months. Thaw overnight in the refrigerator before reheating.

Reheating

Reheat gently on the stovetop over low heat, adding a splash of beef stock or water if the sauce has thickened too much.

FAQs

Can I use pre-made breadcrumbs?
Yes, fresh breadcrumbs are preferred but panko or store-bought breadcrumbs work well.
Is Gruyere cheese essential?
Gruyere adds a nutty flavor, but Swiss or mozzarella can be substituted.

Can I make the sauce without alcohol?
Yes, substitute sherry with extra beef stock or a splash of apple cider vinegar.
How do I keep meatballs from falling apart?
Use breadcrumbs soaked in milk and handle the mixture gently.
Can I bake the meatballs instead of pan-frying?
Yes, bake at 400°F (200°C) for 15-20 minutes, then finish in sauce.

What’s the best way to caramelize onions?
Cook slowly over medium-low heat with occasional stirring until deep golden brown.
Can I prepare this dish in advance?
Yes, meatballs and sauce can be made ahead and reheated.
What can I serve with French Onion Meatballs?
Mashed potatoes, egg noodles, polenta, or crusty bread are excellent choices.

Are these meatballs gluten-free?
Not as written due to breadcrumbs; use gluten-free breadcrumbs to adapt.
How long does it take to make this recipe?
Approximately 1 hour from start to finish, mainly due to onion caramelization.

Conclusion

French Onion Meatballs deliver a rich, comforting meal that transforms classic flavors into an elegant, satisfying dish. The blend of tender meat, melted cheeses, and deeply caramelized onion sauce creates a harmony of textures and tastes perfect for any occasion. Easy to make but impressive in flavor, this recipe is sure to become a favorite for those who love hearty, flavorful meals with a gourmet touch.