- 1/2 cup water
- 1/3 cup sugar
- 1 1/2 tablespoons fresh lemon juice
- 3 or 4 whole allspice
- 3 cups fresh or frozen blackberries (1 1/2 pints)
- Bring water, sugar, juice, and allspice to a boil in a small saucepan over moderate heat, stirring until sugar is dissolved. Boil until reduced to about 1/4 cup. Cool syrup to lukewarm and discard allspice.
- Purée 2 cups blackberries with all of syrup in a blender. Force purée through a fine sieve into a bowl to remove seeds. Stir remaining cup berries into sauce.