• 225 g sugar
• 75 ml water
• 250 ml coffee
• 1 tablespoon Irish whiskey

Put the sugar and water in a heavy-bottomed saucepan; stir until the sugar dissolves and the water comes to the boil. Remove the spoon and do not stir again until the syrup turns a pale golden caramel. Then add the coffee and put back on the heat to dissolve. Allow to cool and add the whiskey.