I love pie.  My favorite type is pecan. 
a pie is always baked
Really, I never knew that.  Does it have to have a crust and top too?
Crust (geology)
In geology, the crust is the outermost solid shell of a rocky planet, dwarf planet, or natural satellite. It is usually distinguished from the underlying mantle by its chemical makeup; however, in the case of icy satellites, it may be distinguished based on its phase (solid crust vs. liquid mantle).
The crusts of Earth, Moon, Mercury, Venus, Mars, Io, and other planetary bodies formed via igneous processes, and were later modified by erosion, impact cratering,
Lemon meringue pie
Lemon meringue pie is a type of baked pie, usually served for dessert, made with a crust usually made of shortcrust pastry, lemon custard filling and a fluffy meringue topping. Lemon meringue pie is prepared with a bottom pie crust, with the meringue directly on top of the lemon filling.
History.
Lemon flavoured custards, puddings and pies have been made since Medieval times, but meringue was perfected in the 17th century. Lemon meringue pie, as it is known today, is a 19th