Ingredients
Equipment
Method
Cooking Instructions
- Begin by thinly slicing the onions. In a large skillet, melt butter over medium-low heat and cook onions gently for 25-30 minutes until golden brown.
- In a medium bowl, combine mayonnaise, ketchup, Dijon mustard, Worcestershire sauce, and smoked paprika to make the secret sauce.
- Shape ground beef into wide, thin patties (about ½ inch thick) and season both sides with salt and pepper.
- Heat a skillet over medium-high heat, cook patties for 3-4 minutes on each side until browned and cooked through.
- Butter one side of each slice of rye bread. Layer with cheese, a beef patty, caramelized onions, more cheese, and top with another slice of bread.
- Grill sandwiches in the skillet over medium heat for 3-4 minutes per side, pressing gently with a spatula.
- Remove, slice in half, and serve hot with remaining secret sauce on the side.
Nutrition
Notes
Store leftovers in an airtight container in the fridge for up to 2 days. Freeze assembled sandwiches for up to 2 months.
