Ingredients
3 tablespoons mayonnaise1 tablespoon ketchup1 tablespoon sweet pickle relish1/2 pound ground beefSalt and pepper to taste1 small onion, sliced and separated into rings4 tablespoons butter, divided4 slices sourdough bread4 slices Swiss cheese
Preparation
In a small bowl, combine the mayonnaise, ketchup and relish; cover and refrigerate.
Shape beef into two oval patties. In a large skillet, cook burgers over medium heat for 4-5 minutes on each side or until a thermometer reads 160°. Season with salt and pepper; remove and keep warm. In the same skillet, saute onion in 1 tablespoon butter until tender. Remove and keep warm.
Using 2 tablespoons butter, butter one side of each slice of bread. Melt remaining butter in the skillet. Place bread, buttered side up, in the skillet; cook for 2-3 minutes or until golden brown. Turn; top two of the bread slices with the cheese. Cook 2 minutes longer or until cheese is melted.
To serve, place toast cheese side up on a plate. Top with a burger, relish mixture, onion and remaining toast.
