01 -
Cook bacon slices in a skillet over medium heat until crisp. Remove and set aside on paper towels to drain excess fat.
02 -
In the same skillet, add thinly sliced onions and cook over medium heat, stirring occasionally, until golden and caramelized, about 15 minutes.
03 -
Combine maple syrup, bourbon, apple cider vinegar, and Worcestershire sauce in a small bowl; mix thoroughly.
04 -
Shape ground beef into four equal patties. Season both sides evenly with salt and black pepper.
05 -
Grill or pan-fry patties over medium-high heat for 4 to 5 minutes per side, targeting medium doneness.
06 -
During the final minute of cooking, brush maple bourbon BBQ sauce generously over each patty.
07 -
Place each patty on the bottom half of a bun. Layer with crispy bacon, caramelized onions, lettuce, and tomato slices. Cap with the top bun.
08 -
Serve burgers immediately while hot and enjoy.