Place 8 large wine glasses or sundae dishes into the freezer.
Dissolve the granulated sugar in the water and boil rapidly until the mixture is just turning golden—about 5 minutes. Remove from heat.
Beat the egg yolks and add the syrup, beating all the time. Continue to beat until the mixture cools and is light and fluffy—about 7 minutes. Beat in the Drambuie slowly. Chill thorou