Fresh rosemary steeps into the grapefruit syrup behind this paloma mocktail, topped with lime and sparkling water instead of tequila. The rosemary syrup keeps in the fridge for a week, ready for the next gathering without starting over.
In a small saucepan, combine the sugar, water, and rosemary sprigs. Heat over medium heat, stirring until the sugar fully dissolves. Remove from heat and let the syrup cool with the rosemary in it for 30 minutes. Once cooled, discard the rosemary.
Fill two glasses with ice. Add about 2 tablespoons of rosemary syrup to each (more or less, depending on your sweetness preference).
Pour in 1 cup of grapefruit juice per glass, squeeze in the juice of half a lime, and top with 1 cup of sparkling water or club soda.
Stir gently to combine. Garnish with grapefruit slices and rosemary sprigs, if desired. Serve immediately.
Notes
Serve: Enjoy with light summer dishes like shrimp or tilapia tacos and with winter treats like Christmas cookies, and fudge.Store: Make the rosemary syrup up to a week ahead and store it in an airtight jar in the fridge, but enjoy the finished mocktail fresh. Always mix the juices and sparkling water directly before serving.