Wash fully ripened grapes
Separate pulp and skins
Cook pulp slowly until soft and rub thorough sieve
Combine sieved pulp and skins, combine sugar and flour and add to grape mixture
Add butter and pour into pastry-lined pan
Cover with top crust or with strips of pastry
Bake at 450° F. for 15 minutes, reduce heat to 350° F. for 30
minutes or until done