Creating the Magnolia Bakery Blueberry Jamboree is straightforward. Follow these steps for delightful results:

1. Preheat Oven: Preheat your oven to 375°F (190°C).
2. Prepare Filling: In a mixing bowl, combine the blueberries, sugar, lemon juice, cornstarch, vanilla extract, and salt. Gently fold everything together until the blueberries are evenly coated.
3. Prepare Pie Crust: Fit the prepared pie crust into a 9-inch pie dish, trimming any excess around the edges if needed.
4. Fill Crust: Pour the blueberry mixture into the prepared pie crust, ensuring it’s evenly distributed.
5. Add Butter: Dot the filling with small pieces of butter to enhance flavor during baking.
6. Cover with Crust: If you have a second pie crust, place it over the filling. Cut small slits to create a lattice pattern or leave it solid. Crimp the edges to seal.
7. Egg Wash: Beat the egg and brush it over the top crust for a beautiful golden finish.
8. Bake: Place the pie in the oven and bake for 45-50 minutes, or until the crust is golden brown and the filling is bubbling.
9. Cool: Remove the pie from the oven and allow it to cool for 30 minutes before slicing.

These steps will help ensure your Magnolia Bakery Blueberry Jamboree is perfectly baked and delicious!