To prepare a strawberry brown sugar sour cream pie, you will first need to prepare your pie crust. Preheat the oven to 375 degrees F (190 degrees C) and grease the bottom and sides of the pie pan with cooking spray. Place the sugar, butter, and vanilla extract in the mixing bowl and beat with an electric mixer until the mixture is light and fluffy, about 5 minutes. Add the eggs and the vanilla and mix until combined. Pour the batter into the prepared pie shell and bake for 20 to 25 minutes or until browned and bubbly. Remove from oven and allow to cool before serving.