Blueberry Pie

Bahan-bahan (8 porsi)

• 3 cups all-purpose flour, (spooned into measuring cup and leveled-off)
• 3 tablespoons sugar
• 1 teaspoon salt
• ¼ teaspoon baking powder
• 2½ sticks (20 tablespoons) cold unsalted butter, (sliced into 1-inch pieces)
• ½ cup ice cold water
• 5 cups blueberries, (fresh or frozen (if frozen, no need to thaw))
• 1 teaspoon lemon zest, (from 1 lemon)
• 2 tablespoons fresh lemon juice, (from 1 lemon)
• ¾ cup + 2 tablespoons sugar
• ¼ teaspoon salt
• ⅓ cup tapioca flour (also called tapioca starch), (such as Bob’s Red Mill)
• 2 tablespoons unsalted butter, (cut into small cubes)