Whiskey is a serious drink made for serious occasions. Sure, you can ask it to do its job with some compatriots in a Manhattan or old fashioned, but those are rather serious cocktails themselves, aren’t they? Sazeracs, Rob Roys – these are the sorts of beverages that have gravitas; even an Irish coffee dolloped with pillowy whipped cream gives off the vibe that you’re not taking any guff, not even at brunch.