When a talented bartender like Darlin Kulla works side by side with a world-class kitchen staff, delicious things happen—like this cocktail, made with a blackberry sauce from the dessert menu at Succotash in D.C. “I find that the sweetness of the berries is a great pairing for the mint in the julep,” Kulla says. “We use champagne to brighten the cocktail and add an extra layer of fun.”