Ingredients
Method
- Brown sliced onions until lightly charred.
- Cook ground beef until deeply browned and season.
- Split rolls and layer cheese, onions, beef, cheddar, and pickles.
- Top with rolls, brush with butter, and add sesame seeds.
- Bake covered, then uncover until melted and toasted.
Notes
- The beef and onions can be cooked one day ahead and refrigerated separately.
- Burger sauce can be made up to four days in advance and stored airtight.
- Store leftovers refrigerated up to three days and reheat in oven or air fryer.
