What ingredients do I need to make French onion meatballs?

To make French onion meatballs, you will typically need ground beef or a mix of beef and pork, onions, garlic, breadcrumbs, eggs, beef broth, Worcestershire sauce, and Swiss or Gruyère cheese. Caramelized onions are essential for authentic flavor, achieved by slowly cooking sliced onions until they are golden brown and sweet. For seasoning, use salt, pepper, and fresh thyme or parsley. These ingredients combine to create meatballs that capture the classic French onion soup taste in a convenient, bite-sized form.

How do I caramelize onions for French onion meatballs?

To caramelize onions, thinly slice 2-3 large onions and cook them slowly over low to medium heat in a pan with butter or oil. Stir frequently for about 30-40 minutes until the onions turn soft, golden, and sweet. Be patient; avoid high heat to prevent burning. Adding a pinch of salt helps break down the onions faster. Caramelized onions add rich, sweet flavor to the meatballs and a deeper taste reminiscent of French onion soup.

Can French onion meatballs be made ahead and frozen?

Yes, French onion meatballs freeze well. After shaping and cooking the meatballs, allow them to cool completely. Place them on a baking sheet and freeze until firm, then transfer to a freezer-safe container or bag. They can be stored for up to 3 months. To reheat, bake in the oven at 350°F (175°C) until heated through or warm gently in a simmering broth or sauce. This makes them a convenient meal option for busy days.

What is the best way to serve French onion meatballs?

French onion meatballs are delicious served over egg noodles, mashed potatoes, or toasted baguette slices to soak up the sauce. They pair well with a rich beef broth or a light gravy made from the pan drippings and caramelized onions. Garnish with chopped fresh parsley and shredded Swiss or Gruyère cheese for an extra layer of flavor. For a complete meal, add a simple green salad or steamed vegetables on the side.

How can I make French onion meatballs more flavorful without adding too much salt?

To deepen flavor without excess salt, focus on aromatic ingredients like caramelized onions, garlic, and fresh herbs such as thyme or rosemary. Use Worcestershire sauce or a splash of balsamic vinegar to add umami complexity. Toasting the breadcrumbs before mixing can add a subtle nuttiness, and cooking the meatballs in a homemade low-sodium beef broth enhances taste naturally. These techniques provide rich, balanced flavors without relying heavily on salt.

French Onion Meatballs Recipe With Cheese And Caramelized Onions

Ingredients

– 1 ½ cups fresh breadcrumbs or panko breadcrumbs

– ¼ cup plus 2 tablespoons whole milk

– 1 ½ pounds ground beef (85/15 lean to fat ratio recommended)

– 1 tablespoon chopped parsley

– 1 teaspoon fresh thyme leaves (plus extra for garnish)

– 1 teaspoon herbes de Provence

– About 1 teaspoon salt (or to taste)

– About ¼ teaspoon black pepper (or 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 tablespoons olive oil (divided)

– 2 tablespoons ghee or butter

– 2 ½ large white onions, halved and sliced

– Salt (to taste)

– Black pepper (to taste)

– 4 cloves garlic, pressed

– 1 teaspoon herbes de Provence

– 1 teaspoon dried thyme

– ¼ cup sherry or white wine

– 1 ½ tablespoons flour

– 2 ¼ cups beef stock

– 2 teaspoons fresh thyme leaves

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Instructions

1- First off, start by soaking 1 ½ cups of fresh breadcrumbs in ¼ cup plus 2 tablespoons of whole milk for about 5 minutes that’ll help keep your meatballs moist and tender.

2- Next, in a big bowl, gently mix the soaked breadcrumbs with 1 ½ pounds of ground beef, 1 tablespoon of chopped parsley, 1 teaspoon of fresh thyme leaves, 1 teaspoon of herbes de Provence, about 1 teaspoon of salt, about ¼ teaspoon of black pepper, ½ large white onion finely minced, 4 cloves of pressed garlic, ¼ cup of grated Gruyere cheese, and 1 whisked egg. My favorite part is shaping this mixture into meatballs about 2 tablespoons each and chilling them for 15 minutes to firm up.

3- Then, heat 2 tablespoons of olive oil in a large oven-safe skillet over medium-high heat and sear those meatballs in batches until they’re browned on all sides, which takes 8-10 minutes remember to set them aside once done. For the sauce, add the remaining 2 tablespoons of olive oil and 2 tablespoons of ghee or butter to the skillet, toss in 2 ½ large white onions halved and sliced, with salt and pepper to taste, and cook them for 20-25 minutes until they’re deeply caramelized. Stir in 4 cloves of pressed garlic, 1 teaspoon of herbes de Provence, and 1 teaspoon of dried thyme for about 30 seconds until fragrant, then pour in ¼ cup of sherry or white wine and let it bubble and reduce for 30 seconds.

4- Sprinkle in 1 ½ tablespoons of flour and stir for another 30 seconds before whisking in 2 ¼ cups of beef stock to create a smooth sauce. Let it simmer for 5 minutes to thicken, then stir in 2 teaspoons of fresh thyme leaves. Nestle the meatballs back into the sauce, top with the remaining Gruyere cheese and 1 cup of shredded mozzarella, and broil for 5-7 minutes until the cheese is melted and bubbly. Finally, garnish with extra fresh thyme and serve it up with warm rustic bread or over mashed potatoes for a meal that’ll wow everyone!

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Notes

🧀 Use 85/15 lean ground beef for juicy meatballs; leaner beef results in a drier texture.
🧅 Use plenty of sliced white onions as they cook down and impart rich sweetness.
🍷 Sherry or white wine adds authentic depth but can be omitted or replaced with extra beef stock if desired.

Author: Brandi Oshea
Prep Time: 45 minutes
Chilling Time: 15 minutes
Cook Time: 45 minutes
Category: Main Dish
Method: Searing, Baking, Broiling
Cuisine: French-American

Nutrition

Serving Size: 1 serving
Calories: 669