Behind the scenes
Tim Cain, the producer/lead programmer for Fallout and Fallout 2, was particularly fond of cooking and would often surprise his team with culinary delicacies of his own creation. This led to the inclusion of some of his recipes in game manuals and in games themselves. While unconfirmed, it is likely that the mirelurk cake recipe is an homage to this phenomenon. Note that if one presumes that mirelurk meat is crab meat, this is essentially a recipe for breaded crab cakes.