Ingredients
2small onions,sliced
4tbspbutter,divided
8sour dough slices,or rye bread
16swiss cheese slices,or cheddar cheese
¼cupthousand island dressing,optional
grainy mustard,optional
1lblean ground beef
1tspWorcestershire sauce
salt and pepper,to taste
Preparation
Combine the sliced onions and 2 tablespoons of butter in a large frying pan. Cook over low heat for about 20 to 25 minutes until the onions are golden.
Combine the beef, Worcestershire sauce, salt, and pepper. Divide into 4 patties shaped similar to the bread.
Add 1 tablespoon of butter to a pan over medium-high heat. Cook the patties for 3 to 4 minutes on each side or to the desired level of doneness.
Lightly butter both sides of the bread slices. Place the bread, buttered side down, on a griddle or in a skillet.
Add the dressing and mustard, then top with cheese, onions, and beef patty. Place the second slice of bread on top, then grill on each side until hot and melted, and the bread is lightly toasted.
Serve warm, and enjoy!
