Instructions
1. Make the Secret Sauce
. In a small bowl, combine the mayonnaise, ketchup, mustard, pickle juice, paprika, and garlic powder.
. Whisk until fully blended and set aside.
2. Cook the Onion and Beef
. Heat the olive oil in a skillet over medium-low heat. Add the sliced onions. Cook for 30-40 minutes, stirring occasionally, until the onions are deeply golden brown and caramelized. If the onions start to stick, add a splash of water.
. In a bowl, mix together the ground beef, salt, pepper, and Worcestershire sauce. Form into four thin, oval-shaped patties.
. Cook the patties in the same skillet over medium heat until browned, about 2-3 minutes per side. Remove and set aside.
3. Assemble and Cook the Sandwiches
. Spread one side of each bread slice with softened butter.
. Layer the bottom bread slices buttered-side down with Swiss cheese, beef patty, caramelized onions, secret sauce, cheddar cheese, and top bread slice buttered-side up.
. Cook in batches in the skillet over medium heat until both sides are golden brown and the cheese is fully melted, about 1-2 minutes per side.
Storage
. Store leftover secret sauce covered in the fridge for up to 5 days.
Unlock the Secret to a Brighter Smile with Garlic
Combat Blood Sugar Drops with This Culinary Gem!
How To Make The Best Mini Chicken Meatballs
Pizza Grilled Cheese Sandwiches
Drink Lemon Water Instead of Pills to Cure These 13 Health Problems
Here’s How to Remove White Patina from Glasses and Make Them Shine with a Cool Trick
She knew what she was doing
Fresh tomatoes for 2 years, without vinegar: the infallible method of making them last so long
Slow Cooker Ham and Potato Soup
