Pick up your farmer's market berries and make this BBQ sauce

Blackberry Barbecue Sauce
¼ blackberry preserves
1 ½ cups ketchup
1/8 cups brown sugar
1/8 tsp cayenne pepper
¼ tsp mustard powder
2 tbsp red wine vinegar
¾ cup fresh blackberries
Mix together preserves, ketchup, brown sugar, cayenne, mustard, vinegar in mixing bowl. In separate bowl, crush blackberries. Mix berries into sauce and strain to remove seeds.