Add all ingredients to a shaker and fill with ice. Shake, and strain into a coupe glass. Garnish with a fresh curry leaf.
9 oz Raw pistachios, shelled
2.5 cups Hot water
2.5 cups White sugar
.25 oz Orange flower water
.25 oz Everclear
Add pistachios to a non-reactive container and fill with water, until covered. Allow the pistachios to macerate for 30 minutes. Strain off the water and keep the pistachios. Add the pistachios to a blender and slowly add two-and-a-half cups of hot water to the blender until the mixture reaches a smooth consistency. Pour the mixture into a non-reactive container and let it steep for two hours.
Strain the mixture using a chinois. Squeeze out as much liquid as possible and keep the liquid pistachio milk. Discard the solids and place the pistachio milk in a saucepan over medium heat. Add two-and-a-half cups of granulated white sugar to every 1.8 cups of pistachio milk for a 4:3 ratio. Slowly dissolve the sugar in the pan (do not boil the mixture). Remove the mixture from the heat and allow to cool. Add the orange flower water and everclear. Store in a sealed container, refrigerated, for up to two weeks.