Patagonian legend holds that anyone who eats a calafate berry is destined to return to Patagonia — bars lean into the myth by naming the cocktail after it.
Pisco or gin is shaken with the tart juice of wild calafate berries, lemon, and egg white into a purple-hued sour, poured at bars across Chilean Patagonia. It's a modern drink built entirely around a native shrub berry.