Directions

1. Preheat oven to 425 degrees F (220 degrees C).
2. Squeeze the end of each grape opposite the stem to separate skins from pulp. Set skins aside. Place pulp in a medium saucepan, bring to a boil, and cook, stirring, for 1 minute. Press through a strainer or food mill to remove seeds.
3. Combine pulp, skins, sugar, flour, lemon juice and salt. Pour into pastry shell.
4. Combine oats, brown sugar and flour; cut in butter until crumbly. Sprinkle over filling.
5. Cover edges of pastry with foil. Bake at 425 degrees F (220 degrees C) for 15 minutes. Remove foil, and bake 20 minutes more or until golden brown. Cool on a wire rack.