Using a kitchen scale weigh out 1 ounce of vanilla beans (or 2 oz for double fold) for each cup of vodka you plan to use. If desired, slice your vanilla beans down the length of the bean. Cut beans in half if necessary to fit in your clean glass jar with lid.
Place vanilla beans and vodka in jar. Beans must be fully submerged.
Cover and place the jar in a cool, dark area, and shake as desired.
The recipe may be doubled or more. Be sure to use at least 1 oz of beans per 1 cup of alcohol.
For best results, allow to extract for a full year, but you may taste test earlier and use if the quality meets your standards.