Maceration!
Horseradish vodka works!
Take 750 ml bottle of vodka, regardless of quality. (It’s supposed to be colorless, odorless, and flavorless.) Peel a 3-inch (7.5 cm) horseradish root and cut into thin strips. Place strips into bottle. Let the strips sit for a week or so … and presto! The ideal liquor for Bloody Marys!