White Sweet Potato Meringue Pie
["3 medium white sweet potatoes", "3 slightly beaten egg yolks", "3/4 c. milk", "3/4 c. sugar", "1/2 stick butter or margarine", "1 Tbsp. cornstarch or flour", "1 1/2 Tbsp. pure banana flavoring"]
["Bake or boil potatoes; peel while hot.", "Mix in a large bowl 2 cups mashed potatoes, egg yolks, butter, sugar, flour, milk and flavoring.", "Mix well."]
["white sweet potatoes", "egg yolks", "milk", "sugar", "butter", "cornstarch"]