Step 1
In a large bowl add the blueberries, sugar, cornstarch, lemon zest, and lemon juice, mix until fully combined.
Mix the Filling Together
You want to ensure each blueberry is coated in the mixture.
Make Sure Combined
Step 2
Add the blueberry filling into the chilled bottom crust. Add the cubed butter on top.
Add to Pie Crust
Step 3
Roll the second pie dough on top and seal. Use your two fingers and thumb to crimp the pie together
Add Pie Top & Pinch Together
Step 4
Brush pie with egg wash. Sprinkle with coarse sugar and cut a few lines in the top center of the pie so the pie can release the steam while baking.
Add Sugar and Bake
Step 5
Once the pie has finished baking, let the pie cool on a wire rack for at least three hours, ideally, four to five.
Bake and Let the Pie Rest
Step 6
Slice and Enjoy!
Slice and Enjoy!