In a saucepan over medium heat, stir together brown sugar and water. Bring to a low simmer and remove from heat. Allow to cool fully before storing or using in a cocktail. Store covered in a glass container in the fridge for up to 1 month.
1 cup packed brown sugar, 1 cup water
Make the Kombucha Mojito
Muddle mint, lime wedges and brown sugar syrup in a cocktail shaker.
10 leaves fresh mint, 1 medium lime, 1 ounce brown sugar syrup
Add rum. Shake. Serve over ice and top with kombucha. Garnish with more mint and a lime wedge, if desired.