Place a sheet of aluminum foil on the bottom oven rack, directly under where you'll be placing the pie. This is to catch any juices that might bubble out of the pie while baking.
Prepare The Pie Crust
Pie crusts should sit at room temperature for 15-20 minutes as directed on the package.
Place the bottom crust in the pie plate. Make sure it is centered so the edges evenly hang over the top of the pie plate.
Mix Dry Ingredients
In small mixing bowl whisk together the cinnamon, flour, and salt.
Mix It Up
Place the blueberry filling in a medium mixing bowl. Sprinkle the dry ingredients evenly over the blueberries. Mix gently so as to not crush the blueberries.
Fill The Crust
Pour the blueberry mixture into the pie plate.
Add The Top Crust
If you're making a solid top crust, pinch the edges of the bottom and top crusts together to create a scalloped edge.
If you're making a lattice top crust be sure to pinch the ends of the strips so they join the bottom crust.
Bake The Pie
Bake on medium rack for 425℉ for 15 minutes then reduce the oven temp to 350℉. Cook for an additional 20-25 minutes.
The pie is done when the top crust is golden brown and the filling starts to bubble.
Cool Down
Place on cooling rack and let cool for at least 3 hours. This will give the filling a chance to thicken.
Notes
Nutrition information based on Pillsbury pie crusts and Lucky Leaf Blueberry pie filling. If you use a different brand of either product, nutrition information will vary.