Ingredients
For the Burger Patties:
1 lb ground beef (80/20 blend for juicy burgers)
Salt and pepper, to taste
4 slices cheddar cheese
4 brioche burger buns
For the Caramelized Onions:
2 large onions, thinly sliced
2 tbsp unsalted butter
1 tbsp olive oil
1 tsp sugar
1/2 tsp salt
For the Special Sauce:
1/2 cup mayonnaise
2 tbsp ketchup
1 tbsp mustard
1 tbsp pickle relish
1 tsp garlic powder
1 tsp onion powder
Salt and pepper, to taste
Instructions
Caramelize the Onions:Melt butter and olive oil in a skillet over medium heat.
Add sliced onions, salt, and sugar. Stir occasionally for 20–25 minutes until golden and caramelized. Set aside.
Prepare the Special Sauce:In a bowl, mix mayonnaise, ketchup, mustard, pickle relish, garlic powder, onion powder, salt, and pepper. Adjust seasoning and set aside.
Make the Smash Burgers:Divide the ground beef into 4 equal portions.
Heat a cast-iron skillet or griddle over high heat.
Place one beef portion in the skillet and press down firmly with a spatula to “smash” the patty flat.
Season with salt and pepper and cook for 2–3 minutes per side.
Add a slice of cheddar cheese to each patty during the last minute of cooking.
Repeat for all portions to create double-stacked burgers.
Toast the Buns:Lightly toast the brioche buns in the same skillet until golden.
Assemble the Burger:Spread the special sauce on both sides of the toasted buns.
Add caramelized onions to the bottom bun, followed by two cheese-topped patties.
Place the top bun and press gently.
Serve:Serve hot with a side of fries or your favorite toppings. Enjoy the ultimate burger experience!