INGREDIENTS
1 cup
granulated sugar
3 cups
unbleached all-purpose flour
1 tsp
baking powder
1/4 tsp
salt
zest of 1 lemon
1 cup
cold butter, (cut into cubes)
1
large egg, lightly beaten
1/2 cup
granulated sugar
1 tbsp
cornstarch
juice of 1 lemon (about 2 tablespoons)
5 cups
blueberries (about 1 1/2 pounds)
1/2 cup
confectioners sugar
juice of 1/2 lemon ((more or less for desired consistency))