- 15 sprigs mint leaves, or more to taste
- 3 fluid ounces Scotch whiskey
- 1 fluid ounce simple syrup
- 1 fluid ounce grapefruit juice
- crushed ice, as desired
- Put mint leaves into a tall glass. Use a muddler to bruise the leaves and release their aroma. Pour Scotch whiskey, simple syrup, and grapefruit juice over the leaves; stir. Add enough ice to fill glass; stir.