This Sparkling Cranberry Orange Margarita is a festive and easy tequila cocktail that can mostly be prepped ahead of time for easy assembly.
In a medium saucepan over medium-high heat, combine 1 cup of water, sugar, cranberries, and orange juice and bring to a boil. Immediately lower the heat to low and simmer, stirring often, until the sugar has dissolved, about 3 minutes. Remove from heat and let sit for 20 minutes. Strain through a fine mesh strainer and discard any solids. Use the syrup right away or store in an airtight container in the fridge for up to a 1 week.
Combine the tequila, triple sec, simple syrup, and lime juice in a large pitcher and stir.
Pour salt on a small plate and rub 8 glasses with one of the orange slice garnishes. Dip the rim of the glasses into the salt and fill each glass with your garnish options (orange slices, rosemary sprig, and/or cranberries).
Right before serving, add ice and sparkling water to the pitcher. Pour into prepared glasses and enjoy!