1/3 cup sugar, or more to taste
Pinch of salt
Grated zest of one lime
Juice of 1/2 a lime, or more juice to taste
3/4 cup heavy cream
3/4 cup sour cream
In a medium saucepan cook blueberries, sugar, salt, lime zest and juice over medium heat, stirring, until mixture boils and the berries pop and soften, about 4 minutes.
Pour the berry mixture into a blender and whirl until a seemingly homogeneous puree is achieved, about 1 minute. The mixture will not be completely smooth. Add the heavy cream and sour cream and pulse to blend. Taste and add a bit more lime juice or sugar if you choose.
Pour the blend into a bowl and refrigerate until it is chilled before churning into ice cream.
*I used the best quality heavy cream and sour cream I could find.
Adapted from Dorie Greenspan's Baking From My Home to Yours by Cathy Pollak