Summertime is pretty much synonymous with grilling season. It’s got a lot to do with the heat: You don’t want to get stuck inside with the oven, and if you’re going to sweat over a hot stove, it might as well be outside. It’s easy to get stuck in the same rut of traditional grill items like hot dogs and burgers, but barbecues don’t have to be the same mess of ketchup, mustard and relish every year. Turns out, you can get pretty darn fancy with hot dogs. Top them with mango salsas, cucumber relishes, even Asian flair. They’ll take...