Ingredients
1stickbutter
1onion,whole, large, halved and sliced
1½lbsground beef
5dashworcestershire sauce
salt and ground black pepper,to taste
8slicesrye bread
8slicesSwiss cheese
Preparation
In a medium skillet, melt 2 tablespoons of the butter over medium-low heat. Throw in the sliced onions and cook slowly for 20 to 25 minutes until the onions are golden brown and soft, stirring occasionally.
In a medium bowl, mix together the ground beef, Worcestershire and some salt and pepper. Form into 4 patties.
Melt 2 tablespoons of the butter in a separate skillet over medium heat. Cook the patties on both sides until totally done in the middle.
Assemble the patty melts this way: 1 slice of bread, 1 slice of cheese, 1 hamburger patty, a ¼ of the cooked onions, 1 slice of cheese and 1 slice of bread.
On a clean griddle or in a large skillet over medium heat, melt 2 tablespoons of the butter and grill the sandwiches until golden brown. Remove the sandwiches and add the remaining butter to the skillet.
Return the sandwiches to the skillet, flipping them to the other side. Cook until golden brown and crisp, and until the cheese is melted. Slice in half and serve immediately!
