With five barbecue joints to his name and a sixth eatery on the way—Nashville’s Chief’s on Broadway, a partnership with country star Eric Church—Rodney Scott does not need to reinvent anything. His pulled pork is the gold standard. His small-town-pitmaster-turned-James-Beard-Award-winner story is legendary. And yet the barbecue baron from Hemingway, South Carolina, can’t help tinkering. His latest invention? A partnership with the Spice House, an artisanal spice purveyor, to develop a smoky, sweet, and savory rub perfect for grilling season.