Pies are defined by their crusts. A filled pie (also single-crust or bottom-crust), has pastry lining the baking dish, and the filling is placed on top of the pastry but left open. A top-crust pie has the filling in the bottom of the dish and is covered with a pastry or other covering before baking. A two-crust pie has the filling completely enclosed in the pastry shell. Shortcrust pastry is a typical kind of pastry used for pie crusts, but many things can be used, including baking powder biscuits, mashed potatoes, and crumbs.
Pies can be a variety of sizes, ranging from bite-size to ones designed for multiple servings.
- 3 cups of hulled then quartered, ripe strawberries
- 2 cups of blackberries
- 3/4 cup white sugar
- 4 tbsp flour
- 1 pinch salt
- 1 tsp lemon zest
- 2 tbsp lemon juice
The introduction of the baking of processed cereals including the creation of flour, provided a more reliable source of food. Egyptian sailors carried a flat brittle bread loaf of millet bread called dhourra cake, while the Romans had a biscuit called buccellum.
During the Egyptian Neolithic period or New Stone Age period, the use of stone tools shaped by polishing or grinding, the domestication of plants and animals, the establishment of permanent villages, and the practice of crafts such as pottery and weaving became common. Early pies were in the form of flat, round or freeform crusty cakes called galettes consisting of a crust of ground oats, wheat, rye, or barley containing honey inside. These galettes developed into a form of early sweet pastry or desserts, evidence of which can be found on the tomb walls of the Pharaoh Ramesses II, who ruled from 1304 to 1237 BC, located in the Valley of the Kings. Sometime before 2000 BC, a recipe for chicken pie was written on a tablet in Sumer.