Royal Icing is a traditional icing to cover a Christmas cake or heavy fruit cake. It goes well over the almond icing. Dairy Free and Gluten Free.
Sieve the sugar.
Whisk the egg whites until they become frothy.
Fold the icing sugar into the egg whites, one spoon at a time.
Add the lemon juice and stir in.
Beat the icing until it is very stiff and forms peaks.
Spread over the top and sides of the cake. If you want icing to be smooth shape it with a palette knife.
Store in a cake tin until ready to use.
Decorate as you wish.