Step 1

Step 1: In a small bowl, combine 1 tablespoon mayonnaise and 1 tablespoon butter together.

Step 2

Step 2: Spread the butter-mayonnaise mixture evenly on one side of each slice of bread.

Step 3

Step 3: In another small bowl, combine 1 ounce shredded cheddar cheese and 1 ounce shredded American cheese.

Step 4

Step 4: Heat a nonstick skillet to medium high and place one slice of bread, butter-mayonnaise side down, into the skillet and top with the cheeses and the other slice of bread, butter-mayonnaise side up. Cover and cook for 2-4 minutes, until the underside of the sandwich is golden brown, and then flip. Press with a spatula to compress the sandwich, cover, and cook for 3-4 more minutes until the other side of the sandwich is golden brown as well. Press once more with the spatula, flip and cook for 1 more minute, then remove from pan. Let the sandwich cool for five minutes, then serve.