Wilton icing paste is made to produce deeper richer colour by adding just a small amount this concentrated gel formula helps you achieve the exact shade you want without watering down your icing youll find a rainbow of colours available ready to blend together to create your own custom shadesplease note large amounts of red red christmas red and black may affect icing taste use no taste red for large areas of red on a cake when using black start with chocolate icing to limit the amoun