Modelling paste is a versatile ingredient used in cake decorating to create intricate designs and decorations. It is made from a mixture of powdered sugar, gelatin, and water, which is then kneaded until smooth and pliable. Modelling paste can be colored with food coloring and shaped into various forms, such as flowers, figures, and patterns. It dries hard and can be stored for future use. It is a must-have for professional cake decorators and hobbyists alike.