Vanilla
Have you ever made your own vanilla?
It's so simple to make. It's 2 whole ingredients!
Vodka (or absolute) and vanilla beans, THAT'S IT!
Slice vanilla beans lengthwise and add to container of alcohol. Shake every day, twice a day for 2 weeks. I allow mine to sit and blend for a month or two before using. When I get down to about 1/2 a bottle, I go ahead and make a new batch so it's ready when I need it.
You can also change it up and add some flavor with various essential oils