Case in point: the Transfusion cocktail. A Transfusion cocktail requires just four simple ingredients and lends itself to countless variations. Transfusion Cocktail IngredientsVodka: Vodka’s neutral flavor lets the juice flavors shine in this vibrant cocktail. Concord grape juice: Concord grape juice gives this cocktail its signature purple color. Transfusion Cocktail TipsEllie Crowley For Taste Of HomeWhat’s the best type of glass for a Transfusion cocktail?