Food & Cooking Recipes Healthy Recipes Gluten-Free Recipes Simple Syrup for Whiskey Sours Close Prep Time: 10 mins Total Time: 30 mins Yield: 1 cup Use this recipe to make our Hot and Nutty Whiskey Sours. Directions Bring sugar and water to a boil in a small saucepan over high heat. Cook, stirring, until sugar dissolves. Let cool. Cook's Notes Simple syrup can be refrigerated up to 1 month.