What could be better on a hot day!
Stir together 4 cups of fresh blackberries and sugar in a bowl and let stand for 30 minutes.
Process blackberry mixture in a food processor or blender until smooth, stopping to scrape down the sides.
Pour through a wire-mesh strainer into a 9-inch square pan, discarding solids; stir in buttermilk.
Cover and freeze for 8 hours.
Break frozen mixture into chunks and place in bowl
beat with electric mixer until smooth
Return to pan
cover and freeze again for 3 hours or until firm.
Garnish with whole blackberries and/or blackberry syrup.
Yield: 1 quart taking about 15 minutes plus 30 min stand time and 11 hours freezer time.
Ice cream maker alternative: double the ingredients and combine the blackberry process mixture with the buttermilk in a 4-quart electric or hand operated freezer.
Pack in ice and rock salt mixture and stir till contents stiffen significantly.
Add more salt and ice and let stand for 1 hour without stirring.