Creating the Magnolia Bakery Blueberry Jamboree is an enjoyable process when you follow these clear steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).

2. Make the Crust: In a bowl, combine flour, granulated sugar, and salt. Add cold butter, mixing until the mixture resembles coarse crumbs. Gradually add ice water until the dough comes together.

3. Roll Out Dough: On a floured surface, roll out the dough to fit a 9-inch pie dish. Place the rolled dough in the dish and press it down gently. Trim excess dough, leaving a slight overhang.

4. Blind Bake the Crust: Poke the bottom with a fork to prevent bubbling, then bake for 10 minutes. Remove and let cool slightly.

5. Prepare the Blueberries: In a medium bowl, combine fresh blueberries, lemon juice, cornstarch, and ¼ cup of the powdered sugar. Gently toss to coat.

6. Mix the Cream Layer: In another bowl, whisk together sour cream, remaining powdered sugar, and vanilla extract until smooth.

7. Assemble the Jamboree: In the cooled crust, spread the creamy mixture evenly. Top it with the blueberry mixture, spreading it out evenly.

8. Bake: Place the assembled jamboree back in the oven for an additional 30-40 minutes or until the blueberries bubble and the crust is golden.

9. Cool: Once finished, remove from the oven and let it cool for at least 20 minutes.

10. Chill and Serve: For the best flavor, refrigerate the jamboree for at least 1 hour before serving.