The Jack - 3 oz. prosecco, 4 blackberries, 1 oz. vodka, 1⁄2 oz. fresh lemon juice, 1⁄2 oz. simple syrup, 1⁄4 oz. cointreau, Pour prosecco into a chilled champagne glass, Muddle 3 blackberries in a cocktail shaker, Add vodka, lemon juice, syrup, Cointreau, and ice, Shake vigorously and strain into glass; garnish with remaining blackberry. Will & Grace returns TONIGHT at 9/8c on NBC.