Muddle 1/4 c. raspberries and rosemary leaves in a large glass.
Add the lemon juice and sparkling water, and mix thoroughly.
** If you are in a pinch you can eliminate the lemon juice and just use lemon flavored sparkling water.
Strain the mixture into a new glass filled with ice, discarding the raspberries and rosemary leaves.
Garnish with a remaining raspberries.
* Recipe adapted from The Whole30: The 30-day Guide to Total Health and Food Freedom, by Melissa Hartwig and Dallas Hartwig