Ingredients
½cupmayonnaise
cupketchup
1tbspred wine vinegar
1tbsponion
1tbspparsley
1tbsptarragon
1tspworcestershire sauce
12ozbacon,thickly sliced
1lbground beef chuck
1lbground beef sirloin
1tspkosher salt
½tspfreshly ground pepper
2tbspunsalted butter
3ozsharp cheddar cheese
6hamburger buns
6iceberg lettuce leaves
6slicetomato
6slicered onion
Preparation
In a medium bowl, whisk the mayonnaise with the ketchup, red wine vinegar, onion, parsley, tarragon, and Worcestershire sauce. Cover and refrigerate.
In a large skillet, cook the bacon over moderately high heat, turning once, until crisp. Drain and cut the bacon into large pieces.
Light a grill and fill a large bowl with ice water. Gently mix the ground chuck with the ground sirloin, salt, and pepper. Form the meat into six 4-inch patties, about 1¼ inches thick.
Submerge the patties in the cold water and let soak for 30 seconds. Immediately transfer the burgers to the grill and brush with some of the melted butter.
Grill over high heat for 9 minutes for medium-rare meat, turning once or twice and brushing occasionally with butter. Top the burgers with the cheese during the last minute of grilling and let melt.
Spread the Russian dressing on the buns. Set the lettuce leaves and tomato slices on the bottom halves and top with the burgers, red onion, and bacon. Close the burgers, cut in half, and serve right away.
