(Boxed 1). This striking fuchsia food colouring can be used to colour Culpitt Sugar Paste or Royal Icing. The Fuchsia colour is strong and will deepen on drying. We recommend they are used sparingly. The pretty pink would be a lovely girls birthday cake decoration or be the ideal covering for a pink wedding theme cake. Used sparingly, you can achieve the most delicate of pastel colours, while adding more gives you vibrant colours without changing the consistency of the product you are working with. You can paint with them by adding a little water, although adding Rejuvenator Spirit or Dipping Solution works better. .