Ingredients
Method
- Heat skillet over medium heat until slightly smoking.
- Add ground beef, breaking up with spatula; cook until browned (5-7 minutes).
- Drain excess fat from skillet into sink using paper towels.
- Add sliced onion to skillet; cook until caramelized (4-5 minutes).
- Whisk mayonnaise, ketchup, relish, and Worcestershire sauce in a bowl.
- Butter all rye slices on one side.
- Layer 4 slices with (in order): Swiss cheese, beef/onion mixture, cheddar cheese, and sauce.
- Grill sandwiches on medium-low heat until bread is crisp and cheese is melted (4-5 minutes per side).
Notes
Prep ingredients before assembly; window for assembly is 5-7 minutes after skillet is hot.
Use a large enough pan to avoid crowding.
Press slices firmly together after grilling to prevent filling from spilling.
Substitute Swiss cheese with mozzarella for a gooey, stretchy texture.
Replace Worcestershire sauce with gluten-free alternative if needed.
Butter sides of bread briefly to prevent dryness.
Use a large enough pan to avoid crowding.
Press slices firmly together after grilling to prevent filling from spilling.
Substitute Swiss cheese with mozzarella for a gooey, stretchy texture.
Replace Worcestershire sauce with gluten-free alternative if needed.
Butter sides of bread briefly to prevent dryness.