Pure white and perfect for icing your Rich Christmas Cake or Gingerbread People. Royal Icing sets very hard and is the best icing for piping decorations. This quantity is sufficient to ice and decorate a 20cm square fruit cake.
4 egg whites
500g icing sugar, sifted
1 Tbsp lemon juice
few drops of glycerine*
*Glycerine is not essential, but it helps prevent the icing from becoming too brittle and difficult to cut neatly.
1. Beat the egg whites until frothy and liquid.