Blushing Whiskey Sour & Simple Lemon Syrup Recipes - use a low carb sweetener such as swerve instead of sugar in the syrup. Or you can do like my friend and I did. We used plain simple syrup, added an extra 1/2 shot of whiskey to cut the sweetness down plus we both enjoy the whiskey taste and 3-4 lemon wedges squeezed in the drink. I mixed this all in a tumbler shook it well. It was amazing!!! We also left the blueberries off. Enjoy!!!