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Foolproof Triple Berry Pie with Flaky Lattice Crust

Close-up of a juicy slice of triple berry pie featuring a vibrant berry filling and golden lattice crust.

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Make a bakery-style triple berry pie at home using this recipe. It features a sweet and tart filling made from strawberries, blueberries, and raspberries, set perfectly within a buttery, flaky homemade pie crust. This recipe works well with both fresh and frozen berries.

Ingredients

Scale
  • 2 cups fresh or frozen blueberries
  • 2 cups fresh or frozen raspberries
  • 2 cups fresh or frozen blackberries
  • 1 cup granulated sugar
  • 1/4 cup cornstarch
  • 1 tablespoon lemon juice
  • 1 teaspoon vanilla extract
  • 1 package refrigerated pie crusts or homemade pie dough (for double crust)
  • 1 egg (for egg wash)
  • 2 tablespoons sugar (for sprinkling)

Instructions

  1. Preheat your oven to 375 degrees Fahrenheit (190 degrees Celsius).
  2. In a large bowl, gently combine the blueberries, raspberries, and blackberries.
  3. In a separate small bowl, whisk together the granulated sugar and cornstarch until fully mixed.
  4. Pour the sugar and cornstarch mixture over the berries and toss gently to coat them evenly. Stir in the lemon juice and vanilla extract. Let the filling sit for 10 minutes.
  5. Place one pie crust into a 9-inch pie plate. Trim the edges if necessary.
  6. Pour the berry filling into the bottom crust.
  7. Top the pie with the second crust. You can create a lattice pie crust design or place the top crust whole, cutting vents for steam release.
  8. Crimp the edges of the top and bottom crusts together to seal.
  9. In a small bowl, whisk the egg with 1 teaspoon of water to create an egg wash. Brush the top crust lightly with the egg wash.
  10. Sprinkle the remaining 2 tablespoons of sugar evenly over the top crust.
  11. Place the pie on a baking sheet to catch any drips.
  12. Bake for 50 to 60 minutes, or until the crust is golden brown and the filling is bubbling thickly. If the edges brown too quickly, cover them loosely with foil halfway through baking.
  13. Remove the pie from the oven and place it on a wire rack to cool completely, at least 4 hours, before slicing. This step is important for the filling to set properly.

Notes

  • If you use frozen berries, do not thaw them first; use them directly in the recipe. You may need to add 5-10 minutes to the baking time.
  • For an extra flaky pie crust, keep all ingredients, especially the butter or shortening, very cold before mixing.
  • Serve this classic American pie warm or at room temperature with vanilla ice cream for a perfect summer dessert.

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