Dissolve the gelatine in the hot water.
Allow to cool, but not set.
Roll and sieve the icing sugar.
Beat in the liquid gradually and beat until the mixture is thick and shiny.
Add flavouring and colouring to taste.
This does not set hard like Royal Icing.
It may be used for piping.
This icing may also be made by using granulated sugar.
Boil it with the water and gelatine for 2-3 minutes, cool until it begins to thicken, and then beat until thick enough to spread.