How to Make It
Add the dark rum to the ice-cold blender canister and scoop in the hard-frozen ice cream. Blend for 20 to 30 seconds, or until smooth, stopping now and then to break up and stir in the lumps.
Pour the softened ice cream into the chilled wineglasses and sprinkle the ice cream with the golden raisins and chopped nuts. Garnish the parfaits with the mint sprigs and serve with crisp sugar cookies, if desired.