How to Make It
In a small saucepan, combine the 350 milliliters of vodka with the juniper berries, orange peel, grains of paradise, cardamom, ginger root, coriander and orris root. Bring to a simmer, cover and cook over moderately low heat for 10 minutes. Remove from the heat and let steep for at least 6 hours or overnight.
Strain the essence through a double layer of cheesecloth into a large pitcher. Add the 3 1/2 liters of vodka and stir to combine. Pour the gin into bottles and seal.
Grains of paradise are seeds from a West African plant in the ginger family. Dried ginger root, unlike ground ginger, is the whole root dried. Orris root, an antiquated term for "iris root," is literally the aromatic root of several iris species, used in gin and in some perfumes. All three can be found at specialty stores and at Kalustyan’s (212-685-3451).