Follow the instructions for making Vanilla Ice Cream opposite until the mixture has thickened. Put the instant coffee into a bowl and add 300 ml (10 fl oz) of the hot custard. Stir until the granules have dissolved. Return this mixture to the saucepan and stir well; it should be a very dark colour. Allow to cool.
Pour into an ice-cream machine and churn until frozen, or freeze in a suit