Ingredients

  • 1/2 cup ketchup
  • 2 tablespoons dark brown sugar
  • 2 tablespoons cider vinegar
  • 2 tablespoons yellow mustard
  • 1 tablespoon Worcestershire sauce
  • 3/4 lb ground chuck
  • 3/4 lb ground sirloin
  • 1/2 teaspoon salt
  • 1/2 teaspoon fresh ground pepper
  • 1 large red onion, cut into 1/2 inch-thick slices
  • 8 slices sharp cheddar cheese
  • 8 small dinner rolls, halved horizontally
  • 8 lettuce leaves
  • 1 tomatoes, cut into 8 slices
  • 16 slices bacon, cooked to a crisp, slices halved

Method

  • In a small saucepan, combine ketchup, brown sugar, vinegar, mustard & Worcestershire sauce. Bring to a boil; reduce heat and simmer, stirring occasionally until sauce thickens, about 10 minutes. Pour sauce into a large bowl and set aside.
  • Crumble the chuck & sirloin into a bowl, sprinkle with salt & pepper, and toss lightly to combine. Shape into 8 (3 inch) burgers, about 1/2 inch-thick.
  • Preheat grill to medium-hot and oil grill rack. Grill onions for 5 minutes on each side, or until softened and browned. Transfer onions to bowl with sauce; toss to combine.
  • Grill burgers, 3 to 4 minutes per side for medium-rare. (I took the sauce that was made & dressed each side as well) Top with cheese during the last 1 to 2 minutes of cooking time, with grill covered, to melt cheese. Remove burgers from grill. Grill buns cut sides down until toasted.
  • To assemble burgers, top bottom halves of buns with lettuce, tomato slices, and burgers. Spoon on onions, and top each burger with 2 pieces of bacon and bun tops.