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Gluten-Free Blueberry Pie

Classic Blueberry Pie (Gluten-Free, of course)

Classic blueberry pie, made gluten-free. I love this pie served warm. But it's just as good cold. Eaten for breakfast. (ahem)
Prep Time 1 hour
Cook Time 45 minutes
Total Time 1 hour 45 minutes
Author GlutenFreeBaking.com

Ingredients

For the Crust

  • 1 1/4 cups brown or white rice flour (6 1/4 ounces; 177 grams)
  • 1/2 cup sweet rice flour (2 ounces; 56 grams)
  • 1/2 cup tapioca starch (2 ounces; 56 grams)
  • 1 teaspoon xanthan gum
  • 1/2 teaspoon salt
  • 1 cup butter or solid shortening, cold and cut into tablespoon-size pieces (8 ounces; 226 grams)
  • 5 tablespoons water, more if needed (2.5 ounces; 70 grams)
  • 1 tablespoon apple cider vinegar

For the Filling

  • 3/4 cup granulated sugar (5 1/4 ounces; 150 grams)
  • zest of one lemon
  • 5 tablespoons cornstarch (1 1/4 ounces; 35 grams)
  • 2 tablespoons sweet rice flour (1/2 ounce; 14 grams)
  • 1/8 teaspon salt
  • 6 cups blueberries, washed and picked over (about 2 1/2 pounds; 1 kilo)
  • 3 tablespoons butter, cold and cut into six pieces (1.5 ounces; 42 grams)

For the Topping

  • 1 large egg whisked
  • granulated sugar
  • Ice cream or whipped cream for serving (optional)

Instructions

  1. In a large bowl, whisk together brown rice flour, sweet rice flour, tapioca starch, xanthan gum, and salt. Using your hands or a pastry cutter, cut butter into the flour mixture until it resembles a coarse meal and contains little nuggets of butter. Add water and vinegar. Stir with a wooden spoon until a dough forms. If the dough is dry, add an additional tablespoon of water (more if needed) until the dough holds together. Pat dough into a rectangle and wrap tightly in plastic wrap. Chill for one hour.
  2. Preheat the oven to 425 degrees F.
  3. Cut dough into two equal pieces. Return one piece to the refrigerator. Dust your counter with white or brown rice flour. Roll out one of the dough pieces. Roll out the dough into a 13-inch circle. Move the dough several times to prevent it from sticking on the counter. Working quickly, roll the dough around the rolling pin and transfer to a 9-inch deep pie pan. Don't trim the edges of the pastry yet. Place the pie pan in the fridge while you prepare the filling.
  4. In a large bowl, combine the sugar and lemon zest. Rub it together so no there are no clumps of zest in the sugar. Add the cornstarch, sweet rice flour, and salt. Stir to combine. Add the blueberries. Stir to combine.
  5. Remove the pie pan from the fridge. Spoon the berries into the crust and set aside. Place the six pieces of butter evenly on top of the berries. Roll out the remaining piece of pastry. Roll out the dough into a 13-inch circle. Move the dough several times to prevent it from sticking on the counter. Working quickly, roll the dough around the rolling pin and transfer the dough to cover the berries. Fold the top pastry under the bottom and crimp, either with your hands or by pressing the pastry together with a fork.

  6. Brush the egg over the crust and sprinkle with granulated sugar. Cut several slits in the pastry. This allows steam to vent. Place the pie on a rimmed baking sheet. Bake the pie until the crust is golden brown and filling bubbles, about 45 minutes. If the crust turns brown before the filling bubbles, remove the pie from the oven, cover the top with foil and return the pie to the oven.
  7. Allow pie to cool for at least four hours before serving. Serve with ice cream or whipped cream, if desired.