Blackberry Sorbet

3 1/2 - 4 cups blackberries, fresh or frozen

2/3 cup water

6 tablespoons sugar

2 tablespoons blackberry liqueur

In a medium saucepan, combine blackberries, water and sugar and bring to a boil. Reduce heat and let mixture simmer for 2-3 minutes; the sugar must be completely dissolved.

Put the blackberry mixture through a fine sieve, pushing with a spoon to strain out the seeds. Stir in the blackberry liqueur and chill thoroughly.

Put the blackberry mixture in an ice cream maker and freeze according to manufacturer's directions. Garnish with whole berries.