3 cup Fresh Blackberries 1 cup Granulated Sugar 4 oz Butter 1 Tbsp Ground Cinnamon 1 Tbsp Vanilla extract 2 cups Pineapple Juice 2 Tbsp Cornstarch Instructions Combine all ingredients(except cornstarch) in a boiler and bring to a boil Add cornstarch ( slurry) to pot and cook until thicken Pour into baking dish with raw bottom pie dough Add top crust and brush with melted butter and cinnamon sugar Cook in 350 degree oven for 45 minutes or until golden brownngredients