Make the rhubarb simple syrup by adding 1/2 cup sugar, 1/2 cup water and 2 cups chopped rhubarb into a medium-sized pot. Bring to a boil over high heat. Then turn the heat down to simmer for 15 minutes, stirring occasionally.
Set a strainer over a bowl and pour the mixture through the strainer so most of the liquid is in the bowl. *Note: save the rhubarb solids that are strained out as it tastes just like a jam and is delicious on yogurt, oats or toast**
In a pitcher mix kombucha, rosé and rhubarb simple syrup. At this step you could refrigerate and add the fruit (strawberries, rhubarb, limes) just before serving.
Pour sangria into ice-filled glasses, garnish with mint and optional rhubarb slice. Sip & enjoy!
Notes
This can be made into a non-alcoholic sangria too! Just substitute the rosé with another bottle of kombucha, non-alcoholic rosé and add some sparkling water to your tastes if desired.
Make the rhubarb simple syrup ahead of time. The simple syrup can be stored in the fridge for up to 2 weeks.
Freeze the strawberries or use frozen strawberries to keep the kombucha sangria cool for longer!