St. Louis ribsFirefly’s, 350 East Main St., MarlboroughAfter being coated in a dry rub and smoked for more than four hours over hickory, cherry, and apple woods, Firefly’s ribs are glazed with a peach and Kentucky bourbon barbecue sauce. The sauce is new this summer, and will end with the season. A half-rack, served with a new corn pudding (fresh corn, sweet green and red bell peppers, eggs, milk, Vermont cheddar cheese, and scallions) and cucumber salad is $