Sanitize your glass bottle(s) by pouring boiling water over them.
Cut your vanilla beans in half and split them down the middle. If they're too dry to split, cut them into 1" pieces.
Stuff your bottles with beans (6 per bottle).
Use a funnel to pour liquor over the beans, until they are fully submerged.
Store in a cool, dark place. About once a week, gently shake the bottles.Wait a minimum of 6 months before using. The longer you wait, the better. One year is ideal.