Pastrami and Swiss Football Sandwiches | America's Test Kitchen

Ingredients

• 12 square soft white dinner rolls
• 6 tablespoons yellow mustard
• 36 thin slices deli peppered pastrami brisket (8 ounces)
• 1 pound sauerkraut, drained and squeezed dry
• 12 thin slices deli Swiss cheese (8 ounces)
• pepper
• 4 tablespoons unsalted butter
• 2 tablespoons finely chopped onion
• 1 tablespoon poppy seeds
• 2 tablespoons Worcestershire sauce
• 1 teaspoon garlic powder