Royal icing for decorating biscuits

Ingredients

• egg white — 1
• icing sugar — 100–150 g
• food colouring — optional

Method

1. Lightly beat the egg white with a mixer to a foam.
2. Turn the mixer to maximum speed and add the icing sugar a little at a time.
3. Beat until the icing is thick, white and flowing.
4. A piping bag makes decorating easier.