Mushroom Swiss Smash Burgers with Truffle Sauce

Name: Mushroom Swiss Smash Burgers with Truffle Sauce
Total time: 40
Yield: 4
Ingredients: 0.5 cup mayonnaise; 2 teaspoons fresh lemon juice; 0.75 teaspoon truffle oil; 1 teaspoon finely chopped fresh parsley; 1 clove garlic, grated; 1.25 teaspoons salt, divided; 0.125 teaspoon plus 1/2 tsp. black pepper; 3 tablespoons unsalted butter; 1 (16 ounce) package sliced cremini mushrooms; 5 sprigs thyme; 1 teaspoon Worcestershire sauce; 0.25 teaspoon garlic powder; 0.25 teaspoon onion powder; 0.25 teaspoon paprika; 1.25 pounds ground chuck; 4 slices Swiss cheese; 4 kaiser rolls, split and toasted

Recipe by Nicole Hopper from allrecipes.com

Entree 40 Mins.

Ingredients

4 servings

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0.5 cup mayonnaise
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2 teaspoons fresh lemon juice
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0.75 teaspoon truffle oil
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1 teaspoon finely chopped fresh parsley
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1 clove garlic, grated
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1.25 teaspoons salt, divided
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0.125 teaspoon plus 1/2 tsp. black pepper
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3 tablespoons unsalted butter
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1 (16 ounce) package sliced cremini mushrooms

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5 sprigs thyme
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1 teaspoon Worcestershire sauce
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0.25 teaspoon garlic powder
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0.25 teaspoon onion powder
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0.25 teaspoon paprika
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1.25 pounds ground chuck
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4 slices Swiss cheese
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4 kaiser rolls, split and toasted

Instructions

Whisk together mayonnaise, lemon juice, truffle oil, parsley, garlic, 1/4 teaspoon salt, and 1/8 teaspoon pepper in a small bowl.
Melt butter in a large cast-iron skillet over medium-high heat. Stir in mushrooms and thyme sprigs; cook, stirring occasionally, until mushrooms are tender and golden brown, about 10 minutes. Discard thyme sprigs. Season with 1/2 teaspoon salt and Worcestershire sauce. Transfer mushroom mixture to a bowl; keep warm for serving. Wipe out skillet.
Stir together garlic powder, onion powder, paprika, and remaining 1/2 teaspoon each salt and pepper for the rub. Divide beef into 4 portions; gently shape into balls.
Heat same skillet over medium-high heat. Working in batches as needed, add meat portions to dry skillet; press down firmly with a flat spatula or grill press into 41/2-inch-diameter patties. Sprinkle evenly with rub. Cook 2 minutes per side or until well browned. Top patties with Swiss cheese and cook about 30 seconds until cheese is melted and an instant- read thermometer inserted into centers registers at least 160 degrees F (71 degrees C).
To assemble burgers, spread bun tops and bottoms with truffle mayo. Fill buns with patties and sautéed mushrooms.