The Ultimelt

Ingredients

• 2 cup mayonnaise
• 1 cup ketchup
• 1 cup relish, rinsed and strained
• 4 thin slices rye bread
• 4 slices gruyère cheese
• butter
• 1 stick butter
• 1 1/2 pound sliced spanish onions
• 1/2 cup sugar
• 1/4 cup balsamic vinegar
• 1/2 pound ground beef
• 1 slice gruyère
• 1/4 cup balsamic caramelized onions
• 1 slice crispy double-smoked bacon, cut in half
• 2 rye grilled cheeses
• 1 tablespoon go burger sauce