Preheat oven to 350°.
Mix all dry ingredients together with a whisk. Add the cream, buttermilk, egg, sorghum, and vanilla, and stir until mixed. Do not over-mix.
Carefully fold berries into batter until evenly distributed.
Pour batter into pie crust. Sprinkle extra brown sugar over top of batter.Bake about one hour.
Let cool for at least one hour before serving. Top with fresh whipped cream or vanilla yogurt and sprinkle with berries.