French Onion Beef Sloppy Joes with Melted Cheese
Cozy French Onion Beef Sloppy Joes with Melted Cheese packed with ground beef, onions, garlic, Worcestershire sauce, and gooey Swiss cheese.
Equipment
- Large skillet or sauté pan
- Wooden spoon or spatula
- Sharp knife
- Cutting board
- Measuring spoons
- Cheese grater (if using block cheese)
- Baking sheet (for melting cheese on buns)
Ingredients
- 1 pound ground beef
- 2 large yellow onions thinly sliced
- 2 tablespoons butter
- 1 tablespoon olive oil
- 3 cloves garlic minced
- 1 cup beef broth
- 1 tablespoon Worcestershire sauce
- 1 teaspoon Dijon mustard
- 1 teaspoon fresh thyme or ½ teaspoon dried thyme
- ½ teaspoon salt
- ½ teaspoon black pepper
- 1 tablespoon flour
- 4 hamburger buns
- 4 slices Swiss or provolone cheese
Optional toppings:
- extra caramelized onions
- fresh parsley
- crispy fried onions
Instructions
Step 1: Caramelize the Onions
- Heat butter and olive oil in a large skillet over medium heat. Add the sliced onions and cook slowly, stirring occasionally.
- Allow the onions to cook for about 15–20 minutes until they become soft, golden brown, and sweet. Proper caramelization is key for that classic French onion flavor.
Step 2: Add Garlic
- Stir in the minced garlic and cook for about one minute until fragrant.
Step 3: Cook the Ground Beef
- Add the ground beef to the skillet with the onions. Break it apart with a wooden spoon and cook until browned and fully cooked.
- Drain any excess fat if necessary.
Step 4: Create the Sauce
- Sprinkle the flour over the beef mixture and stir well. This helps thicken the sauce.
- Add beef broth, Worcestershire sauce, Dijon mustard, thyme, salt, and black pepper. Stir everything together.
- Let the mixture simmer for about 5–7 minutes until slightly thickened and rich.
Step 5: Toast the Buns
- Lightly toast the hamburger buns either in a skillet or under the broiler. Toasting keeps the buns from getting soggy.
Step 6: Assemble the Sloppy Joes
- Spoon the beef and onion mixture onto the bottom half of each bun.
- Place a slice of cheese on top.
Step 7: Melt the Cheese
- Place the open sandwiches under the broiler for about 1–2 minutes until the cheese melts beautifully.
- Add the top bun and serve immediately.