Description
These Soy-Glazed Mushroom Swiss Burgers combine juicy beef patties blended with finely chopped mushrooms, topped with a savory soy glaze and melted Swiss cheese. Caramelized onions add a sweet and rich depth of flavor, while rosemary aioli and toasted challah buns complete this gourmet burger experience. Perfect for a comforting yet elevated meal, these burgers showcase a perfect balance of umami and sweetness with a delightful blend of textures.
Ingredients
Scale
Burgers
- 1 pound lean ground beef
- 12 ounces white mushrooms, chopped fine
- Salt & pepper to taste
- 1 Tablespoon olive oil
Soy Glaze
- 1/3 cup brown sugar
- 1/4 cup low-sodium soy sauce
- 3 Tablespoons granulated sugar
- 2 Tablespoons water
- 1 Tablespoon white vinegar
- 1 Tablespoon rice vinegar
- 1/4 teaspoon ground ginger
Caramelized Onions
- 2 large onions, chopped into 1/4” wide strips
- 2 Tablespoons salted butter
- Pinch of salt
Assembly
- 4 challah buns
- 4 slices Swiss cheese
- 1/2 cup rosemary aioli
Instructions
- Prepare the Soy Glaze: Combine brown sugar, low-sodium soy sauce, granulated sugar, water, white vinegar, rice vinegar, and ground ginger in a small saucepan. Heat over medium-high until boiling, then reduce heat to medium-low and simmer until the mixture reduces by half, about 30 minutes. Remove from heat and let cool for 30 minutes to thicken.
- Caramelize the Onions: Melt 2 tablespoons of salted butter in a large skillet over medium heat. Add the chopped onions and stir until they start to soften and become translucent. Reduce heat to medium-low, season with a pinch of salt, and cook, stirring occasionally, for 40-45 minutes. Add a small amount of water or chicken broth if the onions begin to stick or dry out. The onions will transition from pale yellow to deep golden brown when done.
- Make the Mushroom Beef Patties: In a large bowl, combine the lean ground beef with finely chopped mushrooms by hand until evenly mixed. Form into 4 large patties and season both sides generously with salt and pepper.
- Cook the Patties: Heat 1 tablespoon of olive oil in a large cast iron pan over medium-high heat until hot. Add the patties and cook without moving them for 3 to 4 minutes to develop a brown crust. Flip the patties, immediately brush each with the soy glaze, and top with a slice of Swiss cheese. Loosely cover the pan with aluminum foil to help the cheese melt. Cook for another 3 to 4 minutes until the cheese is melted and the patties are cooked through. Transfer to a plate.
- Toast the Buns and Assemble the Burgers: Butter both split sides of the challah buns and toast them on a griddle until golden. Place each cooked patty on the bottom bun, top with a generous amount of caramelized onions, then spread rosemary aioli on the toasted side of the top bun and place it on top. Serve immediately.
Notes
- Use lean ground beef to reduce excess fat while keeping the burger juicy.
- The soy glaze can be made ahead of time and refrigerated; reheat slightly before using.
- Adding mushrooms to the beef patties adds moisture and an earthy flavor while reducing the amount of meat per serving.
- Caramelizing onions is a slow process but critical for developing their deep, sweet flavor.
- Butter the buns before toasting for extra flavor and a crispy texture.
