Tin Star does only two things — barbecue and doughnuts — which means it comes very close to any sane person's idea of how heaven might smell. When he took over the longtime doughnut joint four years ago, owner Andrew Schutt — a trained chef and veteran of several of Denver's biggest-name kitchens — tried adding a deli to the doughnuts, then sandwiches. Two years ago, he hit on the magical combination of doughnuts and barbecue, and he hit the jackpot. Where else can a man get a pound of smoked pork, some ribs and a killer apple fritter as big as a cat? What else could he possibly need?