Time: about 15 minutes. This is more a method than a recipe, but you can make a fantastic sandwich with just great bread, fresh butter, and your favorite cheese. To make 2 sandwiches at once, just use a larger frying pan. If you want a thin, ultra-crisp sandwich, use a panini press set to medium (350°), or heat a cast-iron skillet on a separate burner. Set the skillet on top of your sandwich as it cooks in the frying pan, and cook about 4 minutes total.