Description

Wisconsin has long been famous for its dairy production, producing more cheese and butter than any other state, so it's no wonder the butter burger was created in that state. An authentic butter burger is made with lean ground beef, preferably sirloin, and a generous amount of butter. Hot cooked chopped onions are usually layered on the burgers along with a slice of cheese if you like. If you crave additional toppings, feel free to add them to the bottom bun before you add the hamburger patty.

Directions

1. Gather the ingredients.
2. Lightly butter the cut side of the buns and toast on a griddle, skillet, or grill, or under the broiler. Set the buns aside.
3. Place a large skillet over medium heat and add 2 tablespoons of butter. When the butter stops sizzling, add the onions. Cook, stirring frequently until the onions are soft and just lightly browned, or about 15 minutes. Remove them to a bowl and set aside.
4. Meanwhile, shape ground beef into four burgers. Make an indentation in the center of each patty.
5. Place the same skillet back on medium heat. Arrange the burger patties in the skillet. Season the burgers with kosher salt and black pepper and cook them for about 6 to 8 minutes on each side, or until they reach at least 160 F, the minimum safe temperature (USDA) for ground meat.
6. Place a square of cheese on each burger and continue to cook until the cheese is melted. Meanwhile, reheat the chopped onions on the stovetop or microwave so they will be hot when you assemble the burgers.
7. Assemble the burgers. Slather each top bun with about 2 tablespoons of butter. If desired, place lettuce leaves on the bottom bun. Top the bottom bun with a cheeseburger. Top with a heaping tablespoon of the cooked chopped onion. Place the buttered top bun on the onion layer and serve immediately. Enjoy!