Blueberry Crumble Pie

Steps

1. Prepare my pie crust recipe through step 5.

2. In a large bowl, mix 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.

3. Preheat oven to 400°F (204°C).

4. 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 pie crust edges. Place pie in the refrigerator until needed in the next step.

5. 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.

6. 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.

7. 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.