1 oz spicy bourbon or rye whiskey (I've used both Maker's Mark and Bulleit Rye with great success)
1 oz apricot liqueur (Rothman & Winter is good, or you could always make your own)
1 dash lime juice
3 dashes celery bitters (Bitter Truth's version is most effective and Fee Brothers' is to be avoided)
2-3 oz IPA (or similar hoppy, bitter beer)
Combine the first four ingredients over ice; top off with beer and raise aloft in victory.
I am fucking proud of this one, as you can probably tell. Something about the synergy of spicy bourbon, round apricot, sharp lime, and grassy-vegetal hops - it's an intriguing combination, even if it's not for everybody. If you can't decide between cocktail or beer, this manages to bridge the gap.