Ingredients:
- ½ cups All-Purpose Flour
- tablespoon Granulated Sugar (for crust)
- teaspoon Fine Sea Salt (for crust)
- cup (227g) very cold Unsalted Butter, cubed
- –8 tablespoons Ice Water
- cups Fresh or Frozen Blueberries (unthawed)
- ¾ cup Granulated Sugar (for filling)
- ¼ cup Cornstarch or Tapioca Starch
- tablespoon Fresh Lemon Juice
- teaspoon Lemon Zest
- ½ teaspoon Ground Cinnamon
- Pinch of Nutmeg
- Large Egg, lightly beaten with 1 tablespoon milk (for wash)
- tablespoon Coarse Turbinado Sugar (for sprinkling)
Instructions:
- Whisk dry ingredients (flour, sugar, salt) for the pastry in a large bowl. Cut in the cold butter until mixture resembles coarse crumbs with pea-sized pieces remaining.
- Gradually add ice water, 1 tablespoon at a time, mixing until the dough just holds together. Do not overwork. Divide dough in half, form into two flat discs, wrap, and chill for at least 30 minutes.
- Roll out one dough disc into a 12-inch circle and carefully transfer it to a 9-inch pie dish. Trim the overhang to about 1 inch. Chill while preparing the filling.
- Gently combine blueberries, filling sugar, cornstarch, lemon juice, zest, cinnamon, and nutmeg in a bowl until lightly coated. Set aside.
- Roll out the second dough disc to about an 11-inch circle and cut into even strips (¾ inch wide) for the lattice.
- Place half the strips vertically over the filling, spaced evenly. Brush edges lightly with egg wash. Weave the remaining strips horizontally over the vertical strips to create the lattice pattern.
- Trim strips and crimp the top and bottom crust edges together securely. Chill the assembled pie for 15 minutes.
- Preheat oven to 400°F (200°C). Place the pie on a preheated baking sheet. Brush the lattice top with egg wash and sprinkle generously with coarse sugar.
- Bake for 15 minutes at 400°F. Reduce heat to 375°F (190°C) and continue baking for 45–55 minutes, or until the crust is deep golden brown and the filling is bubbling thickly. Use foil shields if edges brown too fast.
- Crucially, cool the pie completely on a wire rack for at least 4 hours before slicing to allow the juices to set properly.