Cut vanilla beans in half lengthwise starting about one inch from the top all the way to the bottom. (you just want it attached at the top)

Pour out a couple of ounces of the vodka to make room for the vanilla beans and drop in vanilla beans

Alternately, if you don't want vodka bottles around, place vanilla beans in a quart size or larger canning jar and pour vodka in to cover beans.

Close jar/bottle tightly and allow to sit for at least 8 weeks, preferably 12 weeks, in a cool place. Give it a good shake once a week.

Many sources say you can add more vodka as you use it. I have done this but I tend to start up another bottle to brew once I begin using a new batch of vanilla. The longer it sits the better flavor you will have.