In 1-quart saucepan, mix ketchup, honey, soy sauce, hoisin sauce, sesame oil and five-spice powder. Heat to simmering over low heat; simmer 10 minutes, stirring occasionally. Brush ribs with half of the sauce; bake uncovered 30 minutes longer or until sauce thickens on ribs. Serve with remaining sauce. Sprinkle with green onions.