Vanilla extract, yes. I thought it came with a dropper but maybe I just used to pour very carefully lol. I used to keep almond.

I edited the post. Originally it said "vanillin" which is not the same -- it is the fake stuff (probably what is in your creamer, lol). That is because I thought the real stuff might be hard to get, but then I remembered it was almond extract I had a hard time finding. And that is another good one to try in coffee.

Btw... one drop (of either) to a cup might even be overkill... might be better to add 2-3 drops to the pot (say for 6 cups).