Mother'S Prune Pie
["1 c. pitted prunes", "1/2 c. chopped nuts", "1/2 c. white granulated sugar", "2 beaten egg whites", "1 baked pastry shell"]
["Cook prunes with a little water.", "Mash fine and add the chopped nuts.", "Add the sugar to the beaten egg whites; beat well again.", "Add the prune and nut mixture.", "Put the prune stuff into a baked pastry shell.", "Bake very slowly for about 25 minutes.", "Serve with a generous dollop of real whipped cream."]
["prunes", "nuts", "white granulated sugar", "egg whites", "pastry shell"]