Photo Credit: Jennifer Leslie Barbara Hart designed her bakery at Create Your Cupcake to avoid cross-contamination between cupcakes with gluten and those that are gluten-free. SANDY SPRINGS, Ga. by reporter, Jennifer Leslie, WXIA The secret to Barbara Hart's bakery at Create Your Cupcake in Sandy Springs is a missing ingredient. "It is all gluten-free," she told 11Alive's Jennifer Leslie. Barbara's committed to satisfying any sweet tooth, but she takes special care to cater t