Grandma Bettys Blueberry Pie with Lattice Crust

Ingredients

• 2 ½ cups (315g) all-purpose flour, plus more for dusting
• 1 teaspoon (5g) salt
• 1 cup (227g or 2 sticks) unsalted butter, very cold and cut into ½-inch cubes
• ½ cup (120ml) ice water
• 1 tablespoon (15ml) white vinegar
• 6 cups (approximately 750g) fresh blueberries, rinsed and dried
• ¾ cup (150g) granulated sugar
• ¼ cup (30g) all-purpose flour
• 2 tablespoons (30ml) lemon juice, fresh
• 1 teaspoon (5ml) lemon zest
• 2 tablespoons (30g) unsalted butter, cut into small pieces
• 1 large egg
• 1 tablespoon (15ml) milk or cream
• 2 tablespoons (30g) coarse sugar, such as turbinado or sanding sugar