Combine
the sweet and sour sauce, chili, cornflour, sherry, soy sauce,
five-spice powder, ginger and garlic in a bowl; add the ribs and
stir well, making sure all the ribs are well coated with the
marinade. Cover the bowl and refrigerate overnight. Preheat the oven
to moderate 180C. Brush an oven tray with oil. Arrange the ribs on
the tray and cook for 1 hour or until golden, turning every 20
minutes. Serve hot, garnished with chives.