4 handfuls of potato chips Horseradish mustard sauce-
¼ cup mayonnaise
2 tablespoons Dijon mustard
2 tablespoons drained prepared horseradish
salt and pepper (to taste)
Instructions
In a small bowl whisk together mayonnaise, mustard, and horseradish. Season with salt and pepper. Cover and refrigerate for 30 minutes to allow the flavors to meld.
Divide the ground chuck into 4 equal portions. Form each portion loosely into a ¾ inch thick burger and make a deep depression in the center with your thumb. Season both sides of each burger patty with salt and pepper.
Lightly grease the grill grates of an outdoor grill. Heat the grill to medium-high heat. Place burger patties onto the grill and cook turning once, until fully cooked (the internal temperature has reached 165 degrees). During the last few minutes of cooking top each patty with 2 slices of American cheese. Remove from the grill once the cheese has melted.
Place the hamburger buns cut side down onto the grill and toast until lightly browned. Place the burger patties on the bun bottoms, and top with tomato, lettuce, onion, and a dollop of horseradish mustard sauce. Pile on the potato chips, and top with the bun tops. Serve immediately.