Food & Cooking Recipes Drink Recipes Cocktail Recipes Prosecco Cocktails with Red Vermouth and Blackberries 2.9 (21) By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on January 17, 2019 Print Share Share Tweet Pin Email Yield: 6 The famous Prosecco cocktail appears here as a blackberry variation, fortified by a touch of Italian red vermouth. Ingredients ½ pint (1 cup) blackberries 6 ounces (¾ cup) sweet red vermouth, preferably Cinzano Rosso 2 tablespoons superfine sugar 1 bottle (750 milliliters) Prosecco, chilled Directions Gently stir together blackberries, vermouth, and sugar in a bowl. Let stand, stirring occasionally, until blackberries release juices and sugar dissolves, about 1 hour. Spoon 2 tablespoons of the blackberry juice and 4 blackberries into each of 6 Champagne flutes. Top each with Prosecco. Print