French Onion Burgers
These French Onion Burgers are a dreamy mess of everything you want in the perfect pan seared patty with piles of onions, zesty mustard, and Gruyere cheese.
Servings 4
Calories 394kcal
Ingredients
- 1 lbs ground beef
- 1-2 tsp Worcestershire sauce
- 1 tsp fresh snipped parsley
- ½ tsp fresh thyme
- ½ tsp garlic salt plus a dash
- ¼ tsp pepper
- 2 tbs olive oil
- 1 onion sliced
- 2 tbs white wine
- sliced Gruyere cheese
- 1 tbs coarse grain mustard
- 1 tbs mayo
Instructions
- In a medium bowl, combine the ground beef with Worcestershire, parsley, thyme, garlic salt, and pepper.
- Form into 4 patties.
- Cover and set in refrigerator until ready to cook, at least one hour.
- Preheat broiler.
- Heat 1 tbs olive oil in a large ovenproof skillet over medium heat. Add the onion and cook for 8-10 minutes until just starting to brown.
- Add the wine, scraping up any browned bits, cover, reduce heat to low and cook for 10 – 15 minutes more.
- Remove from skillet, cover with aluminum foil, and set aside.
- Wipe out the skillet, increase heat to medium-high. Add 1 tbsp oil and heat until just smoking. You want the skillet hot.
- Sprinkle a dash of salt on the top and bottom of every patty and place in the skillet without over overcrowding your skillet. Cook until a nice crust forms on bottom, about 4 minutes.
- Flip and cook 4 to 5 minutes longer. Remove skillet from heat.
- Place slices of cheese on burgers and place skillet (if oven safe) under the broiler until cheese is golden and melty, about 1 minute.
- Mix the mustard and mayo together and spread on toasted buns. Top with a patty and a heaping portion of onion.
Nutrition
Calories: 394kcal | Carbohydrates: 3g | Protein: 19g | Fat: 32g | Saturated Fat: 10g | Cholesterol: 81mg | Sodium: 447mg | Potassium: 358mg | Sugar: 1g | Vitamin C: 2.1mg | Calcium: 27mg | Iron: 2.4mg