First remove the buns from the plastic bag, do not separate, and wrap the whole batch in foil. Preheat the broiler.
Put the hotdogs on a sheet pan and run them under the hot broiler for a few minutes. Leave the oven door cracked. (This is important.) Shake the pan a time or two during cooking so that they roll around. You can get some black marks on a couple of sides this way so the hotdogs sort of look like you grilled them, and they taste great. It only takes a few minutes, but don’t forget to leave the oven door open a bit. You don’t want to accidentally bake them--they get a weird texture and sometimes burst that way.
You can put the wrapped buns in the oven on the bottom rack at the same time. You just want them warm.
Put a hotdog on each bun and arrange on a platter. Let everyone accessorize as they like.