Ingredients
Method
Preparation
- Heat a skillet over medium heat.
- Melt the butter and add the sliced onions. Cook until they are caramelized and fragrant.
- Season the hamburger patty with salt and pepper, then cook it in the skillet to your desired doneness.
Assembly and Cooking
- Assemble the sandwich: Place one slice of bread in the skillet, add cheese, the cooked patty, and caramelized onions, topping it with another slice of cheese and the second slice of bread.
- Grill the sandwich until golden brown on both sides and the cheese is melted.
- Serve hot.
Notes
This recipe keeps well in the fridge for up to 3 days. Wrap it tightly in foil or place it in an airtight container. Reheat on the skillet for crispiness.
