Ultimate Patty Melt with Secret Sauce (Print Version)

# Ingredients:

→ Patty Melt

01 - 1 pound ground beef (80/20 blend)
02 - 1 teaspoon Worcestershire sauce
03 - Salt and pepper to taste
04 - 4 slices Swiss cheese
05 - 4 slices rye or sourdough bread
06 - 1 medium onion, thinly sliced
07 - 2 tablespoons butter, softened
08 - 1 tablespoon vegetable oil

→ Secret Sauce

09 - 1/2 cup mayonnaise
10 - 2 tablespoons ketchup
11 - 1 tablespoon Dijon mustard
12 - 1 tablespoon pickle relish
13 - 1 teaspoon garlic powder
14 - 1 teaspoon onion powder
15 - Salt and pepper to taste

# Instructions:

01 - Combine mayonnaise, ketchup, Dijon, relish, and seasonings in a bowl. Refrigerate.
02 - Mix ground beef with Worcestershire sauce, salt, and pepper. Form into 4 patties slightly larger than bread slices.
03 - Sauté sliced onions in oil over medium heat until golden brown, about 10-15 minutes.
04 - Cook patties 3-4 minutes per side, adding Swiss cheese during last few minutes to melt.
05 - Butter bread slices and toast. Spread with secret sauce, add patties with cheese and onions. Grill assembled sandwiches until golden brown.

# Notes:

01 - Can use rye or sourdough bread
02 - Secret sauce can be made ahead