For a vegan option, substitute the egg white with 1 ounce of aquafaba (chickpea brine). Adjust the sweetness by adding a splash of simple syrup if desired. Use high-quality cherry juice for the best flavor. Fresh cherries, pitted and muddled, can also be used. To ensure the egg white is properly emulsified, shake with conviction! If you don't have a cocktail shaker, a mason jar with a tight-fitting lid can be used.