Icing (food) desired colour. Sprinkles, colouring mist, edible ink designs, or other decorations are often used on top of icing. The simplest icing is a glacé icing, containing powdered sugar and water. This can be flavoured and coloured as desired, for example, by using lemon juice in place of the water. More complicated icings can be made by beating fat into powdered sugar (as in buttercream), by melting fat and sugar together, by using egg whites (as in royal icing), and by adding other ingredients such as glycerin (as in fondant). Some icings can be made from combinations of sugar and cream
Foam (culinary) foaming power at a specific protein concentration is determined. A protein will always have certain stresses that it must overcome, such as gravitational and mechanical; it is the protein's ability to stabilize foam against these stresses that determines the foam's stability. The foam's stability is usually expressed as the time required for 50% of the liquid to drain from foam (a 50% reduction in foam volume). Foam (culinary) In cuisine, foam is a gelling or stabilizing agent in which air is suspended. Foams have been present in many forms over the history of cooking, such as whipped cream, meringue and