- 2 red grapefruits
- 1 white grapefruit
- 1½ cups water
- ½ cup granulated sugar
- 2 tablespoons Cointreau
- 5 to 6 sprigs of mint
- Peel and segment the grapefruits with a knife. Remove the seeds and the white pith. In a saucepan, combine the water, sugar, and about half the peel from one of the red grapefruits. Bring to a boil over medium-high heat, stirring to dissolve the sugar.
- Add the grapefruit, reduce heat to low, and simmer for 25 minutes, or until the segments have softened but still hold their shape.
- Remove from the heat and discard the peel. Stir in the Cointreau, then let the grapefruit segments cool to room temperature in their syrup.
- Cover and refrigerate for 24 hours. Divide among dessert bowls, garnish each with a mint sprig, and serve.