2tbsphibiscus powderfrom Waitrose or Amazon – or buy dried hibiscus from a health food shop and grind it
3limesjuiceplus slices to garnish
2ruby grapefruitjuiceplus thin wedges to garnish
chunky ice cubesto serve
2x 275ml bottleskombucha, tonic or non-alcoholic fizz
Method
Combine the syrup, hibiscus powder, lime and grapefruit juice in a jug. Pour into tumblers over ice, then top up with kombucha (or other fizz) and serve.