Purple Cow Recipe Posted on April 12, 2019April 12, 2007 by admin Ingredients 2 oz vodkagrape juice Pour vodka into a shaker. Add grape juice, to taste. Shake, strain into a highball glass, and serve. Spread the love Related posts: Peach Blaster Recipe Peachy Martini Recipe Mint Gin Cocktail Recipe Mocha Blanca Martini Recipe