3. Blueberry filling
Pick up a pound of blueberries and throw into a mixture made up of 2 tablespoons of cornstarch, ½ cup of sugar and a touch of lemon zest.
Once your blueberries are properly coated in this mixture, you need to further blend in a mixture of flour, 3 tablespoons of sugar, cinnamon, salt and butter. Spoon into a pie crust and bake.