For a bubbly cocktail that features chocolate liqueur, Mandy Cohen of New York City’s Paper Daisy whips up this simple cocktail that can be prepared entirely in a champagne glass. “I always like bubbly on Valentine’s Day but since it’s been so cold and snowy in New York, I thought I’d come up with something a little more decadent with a sparkling red,” Cohen says. “It’s got deep forest fruit notes with a lingering chocolate flavor.”