skillet or similar surface over medium-low heat. Slice the buns in half horizontally. Smear the remaining 2 tablespoons of butter on the buns and place, butter side down, on the hot surface, working in batches if necessary. Toast until golden brown, 6 to 8 minutes, adjusting the heat if necessary. You want to do your best to time their completion to the burger cooking."},{"@type":"HowToStep","text":"While the buns toast, cook the patties. Heat a cast-iron skillet or grill over high heat. Use a spatula to ha