French Onion Smashburgers are a delicious twist on the classic burger, featuring caramelized onions and melted cheese.
Author:Lisa
Prep Time:10 minutes
Cook Time:20 minutes
Total Time:30 minutes
Yield:4 servings 1x
Category:Main Course
Method:Skillet or Grill
Cuisine:American
Diet:None
Ingredients
Scale
1 pound ground beef (80/20 blend)
1 large onion, thinly sliced
2 tablespoons butter
4 slices Swiss cheese (or Gruyère)
4 hamburger buns
1 tablespoon Worcestershire sauce
Salt and pepper, to taste
Fresh thyme leaves (optional, for garnish)
Instructions
In a skillet over medium heat, melt the butter. Add the sliced onions, a pinch of salt, and cook until they are soft and caramelized, about 10-12 minutes. Stir occasionally to prevent burning.
In a bowl, combine the ground beef with Worcestershire sauce, salt, and pepper. Mix gently to combine without overworking the meat.
Heat a cast-iron skillet or grill over medium-high heat until hot.
Divide the seasoned beef into four equal portions. Roll each portion into a loose ball.
Place each ball onto the hot skillet or grill. Press down firmly to flatten the patties. Cook for about 2-3 minutes without moving them.
Once the patties have developed a crust, flip them gently and place a slice of cheese on each patty. Allow the cheese to melt for an additional 2-3 minutes.
Lightly toast the hamburger buns on a separate skillet or on the grill until golden brown.
On the bottom half of each toasted bun, place a smashburger patty piled high with caramelized onions. Top with the other half of the bun.