Ingredients
Equipment
Method
Step-by-Step Instructions
- In a large skillet, melt butter and olive oil over medium-low heat.
- Add sliced yellow onions, stirring often for even cooking and caramelization, about 20-25 minutes.
- Increase heat to medium; stir in garlic and thyme, cooking for 1-2 minutes until aromatic.
- Push onions to the side and add ground beef, browning for 5-7 minutes until fully cooked.
- Stir in Worcestershire sauce and flour, cooking for 1-2 minutes to eliminate raw flour taste.
- Pour in beef broth and bring to a simmer, cooking for about 5 minutes to thicken.
- Toast hamburger buns and spoon the beef mixture onto the bottom halves, topping with cheese.
- Close the sandwiches with the tops and serve immediately, enjoying with fries or salad.
Nutrition
Notes
Leftover beef mixture can be refrigerated for up to 3 days or frozen for up to 2 months.
