Hibiscus Syrup Gel

• 200 ml (7 fl oz) hibiscus syrup
• pinch xanthan gum

Bring the hibiscus syrup to the boil in a small saucepan, continue to boil and reduce the syrup by half. Add the xanthan gum and whisk well to combine. Remove from the heat and leave to cool completely, then transfer to a squeeze bottle until required.