Mushroom Patty Melts

Name: Mushroom Patty Melts
Total time: 30 min
Ingredients: 6 tablespoons (3 ounces) unsalted butter, divided; 2 tablespoons olive oil; 10 ounces mushrooms, such as cremini mushrooms or baby bella, sliced; 1 large yellow onion, halved and thinly sliced; 1/8 teaspoon fine salt; 4 teaspoons Worcestershire sauce; 8 slices rye bread or another bread of choice; 8 slices Swiss cheese or Gruyère cheese, or more as desired; Pickles, for serving (optional)

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Total: 30 minutes

Author : G. Daniela Galarza

Ingredients

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6 tablespoons (3 ounces) unsalted butter, divided2 tablespoons olive oil10 ounces mushrooms, such as cremini mushrooms or baby bella, sliced1 large yellow onion, halved and thinly sliced1/8 teaspoon fine salt4 teaspoons Worcestershire sauce8 slices rye bread or another bread of choice8 slices Swiss cheese or Gruyère cheese, or more as desiredPickles, for serving (optional)

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Instructions

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Step 1

In a large (ideally 12-inch wide cast iron) skillet over high heat, melt 2 tablespoons of the butter. Add the olive oil, mushrooms, onion and salt. Fry, stirring frequently, until the onions and mushrooms caramelize and crisp, 10 to 15 minutes, adjusting the heat as necessary if they start to burn. Remove from the heat and stir in the Worcestershire.

Step 2

Assemble the sandwiches: Lay 4 slices of bread onto a flat surface. Place at least 1 slice of cheese on each slice of bread. Top with a quarter of the onion-and-mushroom mixture, followed by at least 1 slice of cheese and the remaining slice of bread.

Step 3

Wipe the skillet out and place over medium heat. Melt the remaining 4 tablespoons of butter, and fry the sandwiches, in batches if necessary, until the cheese has melted evenly and both sides are crisp, 2 to 3 minutes per side. Slice in half and serve hot, with pickles on the side, if desired.