Pie: From coffyn to pastry

December 1st is National Pie Day. Pie as in the round crusty dessert, not the irrational number which is spelled pi. Pie by definition is a baked dish at least topped with and sometimes also surrounded by pastry. Pies are filled with fruits, custard, vegetables or meats and come in all sizes from handheld, individual servings to multiple servings. Pies also come with a single crust on top or just a bottom crust or as a double crust with a crust on top and bottom or as a handheld enclosed pie that is small enough to hold and is often just a piece of a crust folded over the filling and sealed onto itself.