Spread each of the 8 slices of bread with butter. Place four of the slices on a non-stick skillet over medium-high heat. Top each slice of bread with a slice of American Cheese and a slice of Provolone Cheese. Spread the remaining 4 slices of bread with 1/2 tablespoon of Terrapin Ridge Farms Hot Pepper Bacon Jam. Place on top of the bread in the skillet, butter side on the outside. Grill each side until the bread is toasted and the cheese is melted.