Creating Magnolia Bakery Blueberry Jamboree can be a fun experience with these easy-to-follow steps:

1. Preheat your oven to 350°F (175°C).
2. Prepare the Blueberry Filling: In a medium bowl, mix the blueberries, granulated sugar, cornstarch, and lemon juice. Set aside to let the mixture macerate.
3. Make the Biscuit Base: In a separate bowl, combine the flour, baking powder, and salt.
4. Combine Wet Ingredients: Add the milk and melted butter to the dry ingredients. Mix until just combined; do not overmix.
5. Layer the Biscuits: Spread half of the biscuit mixture on the bottom of a greased 9-inch round baking dish.
6. Add the Filling: Spoon the blueberry filling evenly over the biscuit base.
7. Top with Remaining Biscuit Mixture: Drop spoonfuls of the remaining biscuit mixture atop the blueberries, spreading it gently to cover as much as possible.
8. Bake: Place in the oven and bake for 30-35 minutes, or until the top is golden brown and a toothpick inserted in the center comes out clean.
9. Cool: Once baked, remove from the oven and let it cool for 15-20 minutes in the dish.
10. Prepare Topping: While your jamboree is cooling, whip the heavy cream with powdered sugar and vanilla extract until soft peaks form.
11. Serve: Cut the Blueberry Jamboree into slices, and serve each piece topped with a generous dollop of whipped cream.

With these simple steps, you can effortlessly create this delightful dessert that will leave everyone wanting more!