Making Blueberry Jamboree can be a straightforward process if you follow these simple steps:

1. Preheat Oven: Preheat your oven to 375°F (190°C).
2. Prepare Blueberries: Wash the blueberries thoroughly and drain them well.
3. Mix Berries: In a large bowl, combine blueberries, granulated sugar, lemon juice, cornstarch, cinnamon, and salt. Toss gently to coat the blueberries.
4. Prepare Crust: Unroll the pie crust and fit it into a 9-inch pie dish. Trim any excess crust hanging over the edges.
5. Fill Crust: Pour the blueberry mixture into the prepared crust, ensuring it is evenly distributed.
6. Dot with Butter: Place small pieces of butter over the blueberries for extra richness.
7. Cover with Crust: Roll out the second pie crust and place it over the filling. Seal the edges by crimping with a fork and cut decorative slits in the top to allow steam to escape.
8. Egg Wash: Brush the top crust with the beaten egg to promote golden browning.
9. Add Sugar: If desired, sprinkle coarse sugar over the crust for added sweetness and crunch.
10. Bake: Place in the preheated oven and bake for 45-50 minutes or until the crust is golden and the blueberry filling is bubbling.
11. Cool: Remove from the oven and let it cool for about 10-15 minutes before serving. This allows the filling to set.

Following these steps will guide you through the process of creating this incredible dessert effortlessly.