Combine all drink ingredients in a cocktail shaker. Pour ice from a glass into a shaker with drink ingredients. Replace the lid and shake until chilled. Strain liquid into the cold glass and top with grapefruit peel garnish.
This recipe was calculated using the exact brands and measurements I used to make this recipe. If you are following a strict diet please note changing anything will cause the nutritional info to change. My calculations are intended as a guide only.