Ingredients
- Ground beef: 1.5 pounds
- Yellow onions: 2 large, thinly sliced
- Beef broth: 1 cup
- Worcestershire sauce: 2 tablespoons
- Dijon mustard: 1 tablespoon
- Garlic: 2 cloves, minced
- Gruyere cheese: 4 ounces, shredded
- Hamburger buns: 6
Instructions
- Step 1: In a large skillet over medium-high heat, brown the ground beef, breaking it apart with a spoon. Drain off any excess grease.
- Step 2: Add the sliced onions and minced garlic to the skillet. Cook, stirring occasionally, until the onions are softened and lightly caramelized, about 10-15 minutes.
- Step 3: Stir in the beef broth, Worcestershire sauce, and Dijon mustard. Bring to a simmer and cook for 5-7 minutes, allowing the sauce to thicken slightly.
- Step 4: Reduce heat to low and simmer for another 5 minutes.
- Step 5: Spoon the beef and onion mixture onto the hamburger buns.
- Step 6: Top each sloppy joe with shredded Gruyere cheese and serve immediately.
Notes
- For easier weeknight meals, the cooked beef mixture can be stored in an airtight container in the refrigerator for up to 3 days.
- Reheat leftover sloppy joe filling in a saucepan over medium heat, adding a splash of beef broth if needed to restore moisture.
- Toast the hamburger buns before adding the filling for added texture and to prevent them from getting soggy.
- Caramelizing the onions properly is key – don't rush the process to develop their rich, sweet flavor that makes this recipe special.
- Prep Time: 15 minutes
- Cook Time: 20 minutes
- Method: Stovetop
- Cuisine: American