What cheese is topped on the patty melt?

The patty melt is traditionally known for its specific flavor profile, which includes the use of Swiss cheese. Swiss cheese is commonly used in this dish due to its mild and slightly nutty flavor, which complements the savory taste of the beef patty and the caramelized onions typically included. The melting quality of Swiss cheese also enhances the texture of the patty melt, allowing it to blend seamlessly with the other ingredients.

In contrast, cheddar cheese, while popular in many other sandwiches and burgers, has a sharper flavor that can overshadow the delicate flavors of a patty melt. Pepper jack cheese adds a spicy kick that isn’t characteristic of the classic patty melt experience. Blue cheese, known for its strong, pungent flavor, would alter the dish’s intended balance and could overwhelm the other components. Thus, Swiss cheese is the most suitable choice for the patty melt.