Chess pies are a Southern specialty that has a simple filling of eggs, sugar, butter, and a small amount of flour. Some recipes include cornmeal and others are made with vinegar. Flavorings, such as vanilla, lemon juice, or chocolate are also added to vary the basic recipe.
The origin of the name, Chess Pie, is uncertain, but there are plenty of guesses and a bit of folklore surrounding the name. The most probable explanation is that since the English lemon curd pie filling is very close to lemon chess pie, and they believe the word chess is an Americanization of the English word cheese, referring to curd pie. Basically the Chess Pie is a cheese-less cheesecake.