Mushroom Onion Swiss Burger

Form the hamburger into four quarter‑pound patties, making each patty slightly larger than the hamburger buns since they will shrink as they cook. Use a burger press or shape them by hand. Press a small indentation into the center of each patty to help prevent it from puffing up while cooking.

Slice the onion into rings and the mushrooms into slices. Add 2 tablespoons of salted butter to a preheated skillet, then add the onions and sauté until softened. Once the onions have cooked down, add the sliced mushrooms and continue sautéing until the mixture is caramelized.

Add the Dijon mustard and Worcestershire sauce, stirring until fully combined. Remove the onions and mushrooms from the heat and transfer them to a bowl. There’s no need to wipe out the skillet before cooking the burgers.

In the same skillet, add 1 tablespoon of butter. Once the butter has melted, place the patties in the skillet and cook them undisturbed for 5–6 minutes per side to allow a crust to form. Continue cooking until the burgers reach your desired level of doneness.

Just before the burgers are ready to come out of the skillet, add 2 slices of Swiss cheese to each patty and let it melt over the top.

In a separate skillet, melt 2 tablespoons of butter over medium‑high heat. Place the buns cut‑side down in the pan and toast until golden brown. Assemble the burgers on the toasted buns, then top each with a generous spoonful of the caramelized onions and mushrooms.

Enjoy!

Looking for great gourmet burger recipes? Here are a few of our favorites:

• Bacon Western Cheeseburger
• Cheeseburger Wraps
• French Onion Burger
• California Burger
• Smash Burger
• Hawaiian Burger
• Spicy Firehouse Guacamole Burger
• Baja Burger