DeKuyper® Watermelon Pucker® Watermelon Imitation Liqueur. The Brand Bartenders Trust. Sweet & sour schnapps. DeKuyper Watermelon Pucker® is a vibrant blend of sweet and sour flavor. Add any Pucker product to your favorite drink to create a cocktail, or chill and serve as a shot for a mouth-puckering experience. DeKuyper is committed to providing you with cordials of the highest quality. Our products do not contain high fructose corn syrup. DeKuyper, the brand bartenders trust. For additional recipes: www.dekuyperusa.com. Under license from DeKuyper Royal Distillers, Schiedam, The Netherlands.