Blueberry Sour Cream Ice Cream
1 cup blueberries - fresh or frozen (if frozen, thaw and drain)
1/3 cup sugar (or more to taste)
pinch of salt
grated zest and juice of 1/4 lemon (or lime as you prefer) or more juice to taste
3/4 cup heavy cream
3/4 cup sour cream
Put the blueberries, sugar, salt and lemon zest and juice into a medium nonreactive saucepan and cook over medium heat, stirring, until mixture boils and the berries pop and soften, about 3 minutes.
Turn the berries into a blender and whir until you have a fairly homogeneous puree, about one minute. (It will never be completely smooth, and that's just fine.) Add the heavy cream and sour cream and pulse just to blend. Taste and, if you'd like, add a squirt more lemon juice or a tiny bit more sugar.
Pour the custard into a bowl and refrigerate until it is chilled before churning it into ice cream.
Scrape the chilled custard into the bowl of an ice cream maker and churn according to the manufacturer's instructions. Pack the ice cream into a container and freeze for at least 2 hours, until it is firm enough to scoop.
Source: Baking From My Home to Yours, Dorie Greenspan.