Foil-Pack Reuben Sandwiches - Championship Catering

Ingredients

• 1/2 cup mayonnaise
• 2 tablespoons ketchup
• 2 tablespoons sweet relish
• 2 tablespoons fresh lemon juice
• 1 teaspoon Worcestershire sauce
• 1 teaspoon prepared horseradish
• Kosher salt and freshly ground black pepper
• One 12-inch loaf seeded rye or pumpernickel bread
• 1/2 pound thinly sliced corned beef
• 1/4 pound sliced Swiss cheese (about 8 slices)
• 1/2 cup drained sauerkraut
• 2 tablespoons unsalted butter, at room temperature