Cast Iron Patty Melt

There's just something about a gooey, cheesy, buttery patty melt that hits the spot some days. It's comfort food to the max. Both my mom and my wife list a patty melt near the top

Cast Iron Patty Melt

Ingredients
  1. 2 large sweet onions, peeled, halved, and thinly sliced
  2. 8 tablespoons unsalted butter, divided
  3. 1/3 cup mayonnaise
  4. 2 tablespoons ketchup
  5. 1/2 teaspoon yellow mustard
  6. 1/4 teaspoon garlic powder
  7. 1/4 teaspoon ground black pepper
  8. 4 Chop House by Holten Angus Sirloin Steak Burgers
  9. 8 slices thick cut sourdough or rye bread
  10. 4 slices medium cheddar cheese
  11. 4 slices swiss cheese
Instructions
  • In a large skillet, melt 2 tablespoons of butter over medium-low heat.  Add the onions and cook over low heat, stirring occasionally, until they are golden and soft - about 30 minutes.  
  • Make the sauce by combining the mayonnaise, ketchup, mustard, garlic powder, and black pepper.  Set aside.  
  • Heat a large cast iron skillet over medium-high heat.  Add two tablespoons of butter then cook the burger patties according to the package instructions.  Wipe the skillet clean.