Blueberry-Lemon Pie with a Butter Crust

INGREDIENTS

2 1/2 cups

all-purpose flour, plus more for dusting

3/4 tsp

fine sea salt

9 oz

plus 2 tablespoons) cold unsalted butter, cut into cubes

1 tsp

apple cider vinegar

6 cups

blueberries

3/4 cup

sugar, plus more for dusting the pie

5 tbsp

cornstarch

Grated zest and juice of 1 lemon

2 tbsp

cold unsalted butter, cut into thin pats

Heavy cream, for brushing the pie

Ice cream, for serving