For the blueberry filling
01 -
5 cups (740 g) fresh or frozen blueberries
02 -
2/3 cup (135 g) granulated sugar
03 -
1 tablespoon lemon juice
04 -
1 teaspoon finely grated lemon zest
05 -
2 tablespoons cornstarch
06 -
1 teaspoon vanilla extract
07 -
1/4 teaspoon fine salt
For the biscuit topping
08 -
1 1/2 cups (190 g) all-purpose flour
09 -
1/3 cup (65 g) granulated sugar
10 -
2 teaspoons baking powder
11 -
1/2 teaspoon fine salt
12 -
8 tablespoons (113 g) cold unsalted butter, cubed
13 -
3/4 cup (180 ml) cold buttermilk
14 -
1 tablespoon coarse sugar, optional
For serving
15 -
Vanilla ice cream or whipped cream, optional