Heat juice, vanilla, and sugar ... In small bowl, mix cornstarch in water and stir ... 8 x 2 baking dish. Melt in oven. Mix ... in pan. Spoon blackberry filling over dough. Do not stir. Bake at 350°F for 30 minutes or until golden brown.
Ingredients: 10 (cornstarch .. flour .. juice .. milk .. sugar .. vanilla ...)