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Triple Berry Pie Recipe


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3.9 from 39 reviews

  • Author: Ezabella
  • Total Time: 1 hour 5 minutes
  • Yield: 12 servings

Description

This delicious Triple Berry Pie combines fresh or frozen raspberries, blueberries, and blackberries in a sweet, thickened filling nestled inside a flaky homemade pie crust. Featuring a beautiful lattice crust topping brushed with a glossy egg white and baked to golden perfection, this pie offers a perfect balance of tartness and sweetness, ideal for berry lovers and a stunning centerpiece for any dessert table.


Ingredients

Pie Crust

  • Homemade pie crust for a 9” deep dish pan (enough for bottom and top crust)

Filling

  • 7 cups fresh or frozen raspberries, blueberries, and blackberries (about 2 1/3 cups of each type of berry)
  • 1 cup granulated sugar (plus extra for sprinkling on top)
  • 1 Tablespoon lemon juice
  • 4 Tablespoons cornstarch
  • 2 Tablespoons butter
  • 1 large egg white (beaten with a fork)


Instructions

  1. Cook berries: Add raspberries, blueberries, blackberries, sugar, and lemon juice to a large saucepan and heat over medium heat.
  2. Simmer berries: Gently simmer the mixture until the berries are warm and juicy, about 5-10 minutes, stirring occasionally to avoid crushing. Taste and add up to 1/4 cup more sugar if desired for sweetness.
  3. Prepare thickener: Spoon out about 1/2 cup of the berry juice into a bowl and stir in the cornstarch until smooth with no lumps.
  4. Thicken filling: Return the saucepan to a simmer and slowly pour the cornstarch mixture back in, stirring gently without mashing the berries until thickened, about 2-5 minutes.
  5. Cool filling: Remove from heat, stir in the butter until melted, then allow the filling to cool for 15 minutes.
  6. Fill pie shell: Pour the cooled berry filling into the unbaked pie crust in the 9-inch deep dish pan.
  7. Add lattice or top crust: Add a lattice crust or whole top crust with holes pricked for steam to escape (see lattice crust instructions below).
  8. Seal edges and brush pie: Pinch the top and bottom crust edges together and crimp them if desired. Brush the top crust with beaten egg white and sprinkle lightly with granulated sugar.
  9. Bake: Bake in a 400°F (204°C) oven for 40-45 minutes. After about 25 minutes, cover the pie with foil if the crust is browning too quickly.
  10. Cool pie: Remove from oven and place on a wire rack to cool completely for several hours. Optionally refrigerate overnight before serving.
  11. Prepare lattice crust – Roll out crust: Roll your pie crust into a large circle 1-2 inches larger than the pie dish on a lightly floured surface or parchment.
  12. Cut strips: Use a pizza cutter to cut dough into strips of your desired width with no strict rules.
  13. Create first layer of strips: Lay the longest strip across the middle of the pie, then several shorter strips parallel on either side and evenly spaced.
  14. Fold back even strips: Fold back the 2nd and 4th strips and lay a perpendicular shorter strip of dough across. Unfold the folded strips over it.
  15. Fold back odd strips: Fold back the 1st, 3rd, and 5th strips and lay another perpendicular strip. Unfold these over the new strip.
  16. Repeat weaving: Continue folding and laying strips alternately until the entire pie is covered with lattice crust.
  17. Trim excess dough strips: Trim any dough hanging over the pie edge flush with the dish.
  18. Seal lattice crust: Pinch the lattice top and bottom crust edges together to form a unified edge. Crimp edges decoratively if desired.

Notes

  • Use fresh or frozen berries straight from the freezer to save prep time.
  • Adjust sugar to sweeten the filling according to your preference.
  • Be gentle when stirring the filling to prevent crushing the berries.
  • Let the pie cool completely for clean slices and to allow filling to set.
  • The lattice crust not only looks attractive but helps steam escape during baking.
  • Cover the pie with foil halfway through baking if crust browns too quickly.
  • Prep Time: 20 minutes
  • Cook Time: 45 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American