Slice hotdogs in half lengthwise, then each half into thirds lengthwise to make 6 strips from each hotdog. Make a few shallow cuts along the length of each strip on the "skin" side. This will help them curl into worms as they cook.
Open hotdog buns and thinly spread butter on the cut sides of buns.
Heat a nonstick skillet over medium heat. Toast buns, cut side down in skillet til browned and toasty. You may need to do this in batches. Remove buns from skillet and keep warm.
Place hotdog strips in same hot skillet. Toss and cook til curly, hot, and browned to your family's liking. Serve strips on toasted buns and top with desired condiments.