Preheat oven to 400 degrees F.
Mix sugar and cornstarch. Gradually stir in water. Boil for one minute, stirring constantly. Add fruit and juice. Pour into pan. Dot with butter. Sprinkle with cinnamon.
Mix flour, sugar, baking powder, and salt. Fork shortening into mix. Spoon onto hot fruit.
Bake for 25 to 30 minutes.