Stir together butter and parmesan cheese in a small bowl.
spread 1 1/2 tsp. butter mixture on i side of each bread slices.place 4 bread slices,buttered sides down, on wax paper,top with remaining bread slices, buttered sides up.
Cook sandwiches,in batches, on a hot griddle or in a non-stick skillet over medium heat, gently pressing with a spatula,4 minutes on each side or until golden brown and cheese is melted.
