01 -
Combine ground beef, caramelized onions, and seasonings. Do not overmix. Divide mixture into 4 balls and let rest for 15 minutes.
02 -
Heat a griddle, place meat balls, and press flat with a spatula. Cook until edges are crispy, flipping twice. Brush tops with yellow mustard before the final flip and finish cooking.
03 -
Top patties with cheese, bacon, and caramelized onions. When cheese is melted, serve burgers on buttered, griddled buns with a touch of spicy mustard.
04 -
Arrange bacon on a wire rack over a baking sheet. Place in a cold oven and set to 350°F. Combine 3 tablespoons maple syrup, chili powder, and black pepper in a bowl. Baste bacon with the maple syrup mixture while baking. Cool when fully cooked.
05 -
Dice yellow onions finely and cook in a skillet with butter over low heat. Add a splash of maple syrup and a sprinkle of black pepper. Cook until caramelized.