crust4â cups (500g) all-purpose flour1 and 1/2 teas 400g) unsalted butter, very cold and cubed3/4 cup (180ml) ice cold wateregg wash:â 1 large egg, lightly beaten with 1â tablespoon (15ml) milkoptional:â coarse sugar for sprinkling on topfilling4 cups (650g) hulled and chopped fresh strawberries4 cups (500g) h