Derby pie
Derby pie is a chocolate and walnut open-faced custard pie baked in a pie shell. The pie was created in the Melrose Inn of Prospect, Kentucky, United States, by George Kern with the help of his parents, Walter and Leaudra. It is often associated with the Kentucky Derby. Derby Pie was created in 1954 by the Melrose Inn in Prospect, Kentucky as a specialty pastry. The restaurant's owners and derby pie creators were Walter and Leaudra Kern, who constantly researched the optimal recipe for their creation. They were assisted by their son George Kern. The name "derby pie" was chosen because the various family members each had a different name for the creation, so to resolve the naming quandary they put the various names in a hat, and pulled out the paper which said "derby pie".
Source: Wikipedia