
Classic Double-Crust Blueberry Pie
A flaky all-butter double crust holds a jammy, sliceable blueberry filling brightened with lemon. Cornstarch and a long cool-down mean clean slices instead of a runny puddle.
- Prep
- 57 min
- Cook
- 1 hr 10 min
- Wait
- 5 hr 30 min
- Total
- 7 hr 37 min
- Makes
- 1 deep 9-inch pie (8 slices)
Steps
Before you start
- Cut the butter into cubes and chill it in the freezer for 15 minutes, and put a glass of water with ice in the fridge, before you start the dough.
- Plan for about 7½ hours start to finish. Most of that is chilling and the 4-hour cool-down that sets the filling. You can make the dough a day ahead.
- If using frozen blueberries, do not thaw them. Use them straight from the freezer and add 5 minutes to the final bake.
- Position an oven rack in the lower third and have a rimmed baking sheet ready to catch drips.
Cut butter into flour
- In a large bowl whisk the flour, crust sugar, and crust salt.
- Add the cold butter cubes and toss to coat.
- Using a pastry cutter, your fingertips, or short pulses in a food processor, work the butter in until most pieces are the size of peas, with some flat flakes up to the size of a almond slice.
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Ready when: Mixture looks like coarse crumbs with visible pea-sized butter pieces and no dry flour pockets at the bottom.
Tip: Work quickly. If the butter feels soft or greasy, chill the bowl for 10 minutes.
Add water, form dough
- Drizzle 7 tablespoons (105 ml) ice water over the mixture, 1 tablespoon at a time, tossing with a fork after each addition.
- Squeeze a handful: it should hold together without crumbling.
- If it's dry, add the extra tablespoon.
- Tip the shaggy mass onto the counter, divide in two (one piece slightly larger, about 55/45), and press each into a 1-inch-thick disk.
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Ready when: Dough holds together when squeezed and is not sticky.
Tip: Don't knead. Visible streaks of butter make the crust flaky.
Chill the dough
- Wrap each disk tightly in plastic wrap and refrigerate for at least 1 hour, or up to 2 days.
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Ready when: Dough is firm but gives slightly when pressed.
Roll and line the pan
- On a lightly floured surface, roll the larger disk into a 13-inch (33 cm) round about ⅛ inch (3 mm) thick, turning it a quarter turn after every couple of rolls and dusting with flour as needed.
- Loosely fold it in quarters, transfer to the pie plate, and unfold, easing it into the corners without stretching.
- Trim the overhang to ½ inch (1 cm) beyond the rim.
- Refrigerate the lined plate while you make the filling.
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Ready when: Dough fills the pan to the rim with no gaps or thin spots.
Tip: If the dough cracks or turns soft and sticky, slide it onto a baking sheet and chill 10 minutes before continuing.
Mix the filling
- In a large bowl whisk the filling sugar, cornstarch, and filling salt until no cornstarch lumps remain.
- Add the blueberries, lemon juice, and lemon zest and fold gently until every berry is coated and no dry starch remains.
- Scoop out and set aside about 1 cup of berries; lightly crush them with a fork or potato masher, then fold them back in to release some juice for thickening.
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Ready when: Berries look glossy and wet, with no streaks of white starch.
Tip: Mix just before filling the pie so juices don't pool.
Fill and top the pie
- Roll the second disk into an 11-inch (28 cm) round, about ⅛ inch (3 mm) thick.
- Pile the filling into the chilled crust, mounding it slightly in the center, and scatter the butter bits on top.
- Lay the top round over the berries.
- Trim the top overhang to match the bottom, tuck the edges under, and press to seal.
- Crimp with your fingers or a fork.
- Cut 5 or 6 slits, each about 2 inches (5 cm) long, in the top for steam to escape.
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Ready when: Edges are tightly sealed and the top is vented.
Tip: Make sure the vents are cut all the way through, or the filling can steam-lift the crust and burst at the edge.
Chill and preheatOven 425°F / 220°C
- Refrigerate the assembled pie for 30 minutes.
- Meanwhile, place a rack in the lower third of the oven with a rimmed baking sheet on it and heat the oven to 425°F (220°C).
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Ready when: Pie crust is cold and firm to the touch; oven is at full temperature.
Tip: Preheating the baking sheet helps the bottom crust brown.
Brush with egg wash
- Beat the egg and milk together until smooth.
- Brush a thin, even layer over the top crust and crimped edge, avoiding pooling in the vents.
- Sprinkle with the coarse sugar.
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Ready when: Crust has an even, light sheen.
Bake hot firstOven 425°F / 220°C
- Set the pie on the preheated baking sheet and bake at 425°F (220°C) for 20 minutes.
- The crust will begin to set and turn pale golden.
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Ready when: Crust is set and light golden at the edges.
Lower heat and finishOven 375°F / 190°C
- Reduce the oven to 375°F (190°C) and bake 45 to 50 minutes more (add 5 minutes if using frozen berries).
- If the edge browns too quickly, shield it with strips of foil.
- The pie is done when the crust is deep golden brown and thick, slow bubbles burst through the vents.
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Ready when: Deep golden crust and thick, jammy bubbles slowly rising in the vents, not just at the edges.
Tip: Bubbling is the key sign: cornstarch only thickens fully once the filling boils. If the juices are thin and watery, bake 10 more minutes.
Cool completely
- Transfer the pie to a wire rack and cool at room temperature for at least 4 hours before slicing.
- The filling will look loose at first and set as it cools.
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Ready when: Bottom of the pan feels barely warm and the filling no longer jiggles when nudged.
Tip: Cutting a warm pie gives runny slices. Be patient.
Good to know
Tips
- Mash a portion of the berries as in step 5; it releases pectin and juice that helps the filling gel.
- Keep everything cold. If butter softens at any point, chill the dough 15 minutes before continuing.
- Bake on the lower rack with a preheated sheet so the bottom crust cooks through instead of turning pale and soggy.
- Wait for slow, thick bubbles in the vents before removing the pie; that's how you know the starch has activated.
Make ahead
"Make the dough disks up to 2 days ahead and refrigerate, or freeze up to 1 month (thaw overnight in the fridge). The baked pie is best the day it is made but can be baked a day ahead and kept at room temperature."
Storage & reheating
"Room temperature, loosely covered, up to 2 days. Refrigerate up to 4 days. Freeze whole or in slices, wrapped airtight, up to 2 months. Reheat slices or the whole pie at 325°F (160°C) for 10–20 minutes until warmed through and the crust re-crisps."
Substitutions
- cornstarch → Instant tapioca starch (3 tablespoons / 24 g). Gives a slightly glossier filling; slice once fully cooled.
- fresh lemon juice → Fresh lime juice, 2 tablespoons (30 ml). Keeps the same bright acidity with a slightly different flavor.
- unsalted butter → Half butter, half vegetable shortening (113 g each). Makes the dough easier to handle in warm kitchens, with a bit less buttery flavor.
- coarse sparkling sugar → Regular granulated sugar. Browns the same but with less sparkle and crunch.
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- Meal
- Dessert
- Cuisine
- American
- Diet
- VegetarianHalal
- Method
- Oven
- Quick & Easy
- Make Ahead
- Season
- Summer





