Put the caster sugar into a bowl with the water; stir over a gentle heat until the sugar dissolves and the syrup comes to the boil. Remove the spoon and do not stir. Continue to boil until it turns a nice chestnut-brown colour. Remove from the heat and immediately add the hot water. Allow to dissolve again and then add the Irish whiskey. Serve hot or cold.
© 2001 Darina Allen. All rights reserved.