Instructions:
- Prepare the Sauce:
In a small bowl, whisk together the mayonnaise, ketchup, mustard, pickles, Worcestershire sauce, garlic powder, salt, and pepper. Set aside. - Caramelize the Onions:
Melt butter in a skillet over medium heat. Add onions and cook for 10–12 minutes, stirring often, until golden and soft. Remove from skillet. - Form the Patties:
Divide ground beef into 4 equal portions. Flatten each into a thin patty slightly larger than the bread slices. Season with salt and pepper. - Cook the Patties:
Using the same skillet, cook patties for 2–3 minutes per side until browned and cooked through. Remove and set aside. - Assemble the Melts:
Butter one side of each bread slice. On the unbuttered side of four slices, layer one slice of cheese, a patty, caramelized onions, a spoonful of sauce, and another cheese slice. Top with the remaining bread slices, buttered side up. - Grill the Melts:
Heat a skillet over medium heat. Place the sandwiches in the skillet and cook for 3–4 minutes per side, pressing gently with a spatula, until golden and cheese is melted. - Serve:
Slice diagonally and serve hot with extra sauce on the side.
Variations:
- Spicy Kick: Add a few dashes of hot sauce or cayenne to the signature sauce.
- Different Cheeses: Try pepper jack, provolone, or gouda for a twist.
- Add Veggies: Thinly sliced tomatoes or sautéed mushrooms add depth.
Tips:
- Lightly toasting the bread before assembling helps it stay extra crispy.
- Use a cast-iron skillet for even browning and the best texture.
- Let the onions cook low and slow—it’s the key to their rich, sweet flavor.
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This smashing patty melt delivers everything you love about classic diner fare in a homemade, crave-worthy package.