1 pint blueberries
1 cup granulated sugar
1 tablespoon cornstarch
1 cup all-purpose flour
1/3 cup rolled oats
1/4 cup chopped pecans
1/4 cup granulated sugar
1/4 cup packed light brown sugar
Pinch of kosher salt
6 tablespoons cold salted butter, cut into small pieces
1/4 cup heavy cream
2 large egg yolks
1 quart black raspberry ice cream
Whipped cream, for topping (canned)