Step 1

Slice the vanilla beans lengthwise, just enough so that you pierce through one side of the bean.

Step 2

Place the vanilla beans inside a bottle and cover completely with the vodka.  Top with a lid.  Shake the bottle vigorously, then place in a cool, dark place (like a cupboard or your pantry).

Step 3

Shake the bottle every day for 4 weeks (I put a daily reminder on my calendar so I wouldn't forget).  For the next 4 weeks you can shake it less often, like ~3x a week.  Vanilla will be ready to use in 8 weeks.  Shake before using.