Add all the ingredients to a shaker and fill with large, cold ice cubes. Shake vigorously for 8 to10 seconds and double-strain into a coupe glass. Garnish with half a fresh plum.
*Plum Puree INGREDIENTS:
1 lb French prunes, washed and pitted
.5 lb sugar
1 drop Vanilla extract (or the tip of a fresh vanilla bean)
8 oz Water
Add all the ingredients to a small saucepan and cook over low heat for 30 minutes. Remove from the heat and let cool. Transfer to a blender and blend until smooth. Store in the refrigerator for up to a week.