- ⅓ cup water
- ⅓ cup sugar
- 1 tablespoon finely grated peeled ginger
- 1 grapefruit
- vanilla ice cream, for serving
- Combine water, sugar, and finely grated peeled ginger in a small saucepan and bring to a boil, stirring to dissolve the sugar; let cool.
- Cut away the peel and pith of the grapefruit. Slice into rounds and transfer to plates. Drizzle the syrup on top and serve with vanilla ice cream.