Ingredients
1
1/2 tbsp fresh lemon juice
3
cups fresh or frozen blackberries (1 1/2 pints)
Directions
1.
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
2.
. 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.
4.
Sauce keeps, covered and chilled, 4 days. Stir in whole berries just before serving.