Consider the humble sweet potato. Not only does this snazzy root vegetable make a darn fine chip, The Sweet Potato Spirit Co. use them to make a menagerie of marvellous tipples - just like this sweet-potato-based vodka!
Crisp and light, with a subtly sugary sweetness.

Loved it, really tasty and smooth. Only downside is it was hard to get the stopper in and out of the bottle
Interesting idea and it should work, but this tasted pretty awful. Musty, off and rough.