Whenever anybody mentions using anything unusual to bottle carb, the same question always comes up...
If you're interested in adding the flavor, why take the chance with unpredictable carbonation results when you could just add it to the secondary instead?
When you really stop to think about it, there is almost no reason to add anything unusual at bottling because all of it could have been more easily added in secondary. You get all the flavor and aromas, but don't have to worry about bottle bombs or under-carbonation if your estimate of the sugar content is off.
Seriously, just add it to secondary if you're that curious. You'll get pretty much the same result flavor-wise, but you won't have to cope with unpredictable carbonation.
I once bottle conditioned with honey. It worked fine, but in retrospect, it would have been easier and just as tasty had I added it to secondary and I wouldn't have had to try and figure out how much I needed to add to carb... The only reason I would do it again is to put it there on the bottle to impress people- "bottle conditioned with 100% pure honey". Otherwise, dextrose works perfectly well and eliminates the guesswork.
