Use up summer’s fresh blueberries in this buttery, juicy, and completely delicious blueberry crumble pie. It tastes even better with ice cream on top!
- homemade pie crust (my recipe makes 2 crusts; you’ll just need 1)*
- 5 and 1/2 cups (800g) fresh blueberries*
- 1/2 cup (100g) granulated sugar
- 1/3 cup (41g) all-purpose flour
- 1 Tablespoon cornstarch
- 1 Tablespoon lemon juice
- 2 teaspoons lemon zest
- 1/2 cup (100g) packed light or dark brown sugar
- 6 Tablespoons (46g) all-purpose flour
- 1 teaspoon ground cinnamon
- 6 Tablespoons (85g) unsalted butter, very cold and cubed
- 2/3 cup (50g) old-fashioned whole rolled oats
- The crust: Prepare my pie crust recipe through step 5.
- Make the filling: In a large bowl, blueberries, granulated sugar, flour, cornstarch, lemon juice, and zest together until thoroughly combined. It will be pretty flour-y. That’s ok. Place filling in the refrigerator until needed in step 4.
- Preheat oven to 400°F (204°C).
- Roll out the chilled pie dough: On a floured work surface, roll out one of the discs of chilled dough (you can freeze the 2nd for later use, see note). Turn the dough about a quarter turn after every few rolls until you have a circle 12 inches in diameter. Carefully place the dough into a 9-inch pie dish. Tuck it in with your fingers, making sure it is smooth. Spoon the cold filling into the crust and discard the leftover juices in the bottom of the bowl, if any. Flute or crimp the edges of the crust. Place pie in the refrigerator until needed in the next step.
- Make the crumble: Mix the brown sugar, flour, and cinnamon together in a medium bowl. Using a pastry cutter, cut the cold butter into the brown sugar mixture until coarse crumbs are formed. Stir in the oats and sprinkle over pie.
- Place the pie onto a large baking sheet and bake for 25 minutes. Keeping the pie in the oven, turn the temperature down to 375°F (190°C) and bake for an additional 30-35 minutes. After the first 20 minutes of bake time, I place a pie crust shield on top of the pie to prevent the edges from browning too quickly. I also loosely cover the whole pie with aluminum foil to prevent the crumble from browning too quickly as well.
- Allow the pie to cool for 3 full hours at room temperature before serving. This time allows the filling to thicken up. Cover leftovers tightly and store in the refrigerator for up to 5 days.
- Make Ahead / Freezing Instructions: A couple ways to make ahead of time! Make 1 day in advance– after it cools, cover tightly and keep in the refrigerator. Bring to room temperature, if desired, before serving. The pie crust dough can also be prepared ahead of time and stored in the refrigerator for up to 5 days or in the freezer for up to 3 months. Baked pie also freezes well for up to 3 months. Thaw overnight in the refrigerator and allow to come to room temperature before serving. Prepared filling can also be frozen up to 3 months, thaw overnight in the refrigerator before using.
- Special Tools: Colorful Bowls | Lemon Zester | Lemon Juicer | Pastry Blender | Pie Mat | Wood Rolling Pin | Scalloped Glass Pie Dish | Pastry Brush | Eat Dessert First Fork
- Remaining Pie Dough: You can freeze the 2nd pie dough for up to 3 months. Thaw overnight in the refrigerator before using.
- Blueberries: I strongly suggest using fresh blueberries, not frozen. The pie will be quite soupy if using frozen. If you decide to use frozen, do not thaw first. The pie will take several more minutes in the oven due to the increased liquid. Again, I highly encourage fresh.