Cut each vanilla pod down the middle to expose the beans. Do not cut the edges though.
Place 3-5 pods in the glass bottles. The more you put in, the stronger the vanilla will be.
Fill glass bottles with rum to the top using a funnel.
Close the bottle and let it steep for at least 30 days. Two months is more ideal. The longer you let it steep, the stronger it will be!
You can re-use the bottle and refill with rum as necessary!