French Onion Beef Sloppy Joes: A Delicious Twist on a Classic Recipe
French Onion Beef Sloppy Joes combine the rich, caramelized flavor of French onions with hearty ground beef in a savory sauce, topped with melted Gruyere cheese for a delicious twist on the classic sloppy joe sandwich.
- Prep Time: 15 minutes
- Cook Time: 1 hour 20 minutes
- Total Time: 1 hour 35 minutes
- Yield: 6 servings 1x
- Category: Main Course
- Method: Stovetop and Broiling
- Cuisine: American
Ingredients
Scale
For the Caramelized Onions
- 2 tablespoons olive oil
- 2 large yellow onions, thinly sliced
- 1 teaspoon granulated sugar
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
For the Beef Mixture
- 1 pound ground beef (80/20 blend recommended)
- 1 teaspoon garlic powder
- 1/2 teaspoon dried thyme
- 1/4 teaspoon red pepper flakes (optional)
- 1 cup beef broth
- 1/2 cup dry red wine (such as Merlot or Cabernet Sauvignon)
- 2 tablespoons Worcestershire sauce
- 1 tablespoon balsamic vinegar
- 1 tablespoon Dijon mustard
For Assembly
- 6 hamburger buns, split
- 4 ounces Gruyere cheese, shredded
- Fresh parsley, chopped (for garnish, optional)
Instructions
- Heat Oil and Cook Onions: Heat the olive oil in a large, heavy-bottomed skillet or Dutch oven over medium heat. Add the thinly sliced onions in an even layer and cook, stirring occasionally, for 10-15 minutes until they begin to soften and become translucent.
- Caramelize Onions: Sprinkle granulated sugar, salt, and pepper over the onions. Reduce heat to low and cook, stirring occasionally every 10-15 minutes, for 45-60 minutes or until onions are a deep golden brown and very soft. Add a tablespoon or two of water or beef broth if the onions start to stick or burn, scraping up browned bits.
- Set Onions Aside: Once deeply caramelized, remove onions from the skillet and set aside.
- Brown the Beef: In the same skillet or Dutch oven, brown the ground beef over medium-high heat, breaking it up with a spoon as it cooks. Drain any excess fat.
- Season the Beef: Add garlic powder, dried thyme, and red pepper flakes if using. Stir and cook for one more minute to toast the spices gently.
- Add Liquids and Simmer: Pour in beef broth and red wine, bring to a simmer while scraping up browned bits from the pan bottom. Stir in Worcestershire sauce and balsamic vinegar. Reduce heat to low and simmer for 15-20 minutes, stirring occasionally, until sauce thickens slightly.
- Combine Onions and Mustard: Add the caramelized onions back to the beef mixture and stir in Dijon mustard. Taste and adjust seasoning as needed.
- Prepare Buns and Assemble: Split the hamburger buns in half. Spoon the beef and onion mixture onto the bottom halves of the buns. Sprinkle shredded Gruyere cheese evenly over the beef on each bun.
- Broil to Melt Cheese: Place the assembled Sloppy Joes on a baking sheet. Broil in the oven for 2-3 minutes until the cheese melts, becomes bubbly, and lightly browned. Watch carefully to avoid burning.
- Garnish and Serve: Garnish with freshly chopped parsley if desired. Serve immediately while hot and melty.
Notes
- Use a heavy-bottomed skillet or Dutch oven to prevent burning and ensure even caramelization.
- Be patient when caramelizing onions; the deep flavor comes from slow cooking over low heat.
- If you prefer a milder spice level, omit the red pepper flakes.
- Dry red wine adds depth but can be substituted with extra beef broth if preferred.
- Broiling cheese on top adds a delicious crust and melty texture—watch closely to prevent burning.
- This recipe yields 6 servings, making it great for a family meal or casual entertaining.
Keywords: French onion, sloppy joe, beef sandwich, caramelized onions, Gruyere cheese, comfort food, easy dinner, sandwich recipe
