Super sweet. I thought I would love this because--peanut butter! And it is very PB-y, but it's *overwhelming* so. Like saccharine. It *is* good mixed as a cocktail with "regular" whiskey, though. So that's good at least and, with that, I don't regret buying this. ... 2nd Tasting: Getting chocolate syrup...like a liquefied Snickers Bar, for sure! The flavor seems so concentrated and syrupy--more like a liqueur. Definitely a mixer.