3 cups fresh blackberries
3 cups yogurt cheese (or Greek yogurt)
1 can sweetened condensed milk ( 14 ounce can, it's fine if it's a bit more or a bit less)
In a blender, puree the blackberries with the sweetened condensed milk.
In a medium bowl mix the puree with the yogurt cheese.
Pour the mixture in to your ice-cream maker and follow the manufacturer's directions.