1 Roll pastry out to fit a 9 inch pie plate. Roll top crust.
2 Stir sugar and flour together in large bowl. Add apples, raspberries, blackberries, and rhubarb. Toss together, and turn into pie shell. Cover with pastry top. Trim and seal edges. Cut vents in top.
3 Bake at 350 degree F (175 degrees C) for approximately 45 minutes, until crust is brown and apple is cooked.