Split the vanilla beans in half and gently open them up to reveal the vanilla pods inside.
Place 2-3 vanilla pods inside each jar. You may need to fold them in half, so that they don't stick out of the bottle.
Cover the vanilla beans with bourbon (or vodka). Seal tightly with the top.
Set aside in a dark place, such as a cabinet or pantry, away from direct sunlight and heat for at least 30 days, and up to 90 days.
TIPS for Gifting: Remove the vanilla beans prior to gifting; otherwise, they will get soggy when not covered with liquor.
TIP: Top off the bottle with liquor after each use then shake well for endless vanilla extract!