Classic Patty Melt With Rye, Beef, & Cheese - Cooking With Mee

Ingredients

• 6 slices rye bread
• 6 tablespoons unsalted butter, softened
• 1 kilogram ground beef
• 0.75 teaspoon ground black pepper
• 0.5 teaspoon sea salt
• 0.25 teaspoon onion powder
• 3 tablespoons mayonnaise
• 2 tablespoons ketchup
• 1 tablespoon bacon bits
• 1 teaspoon sweet relish
• 1 teaspoon white sugar
• 6 slices cheddar cheese
• 6 slices Provolone cheese