Melt 1 Tablespoon of the butter, in a large cast iron skillet, over medium-high heat. Place only 3 of the patties in the skillet and cook until lightly charred or until desired doneness, about 4 minutes per side. Top with cheese and allow to melt. (You can place these patties in a 200-degree F. oven to keep warm, while the other patties cook.)