Deviled crab is one of those classic recipes that never really gets old. A similar dish deviled clams--is common in new england. The concept is seasoned seafood, mixed with mustard and breadcrumbs, stuffed back into its shell and baked. This recipe is spanish-inspired, with a little fino sherry for flavor. The derivation of this recipes name is from the fact that to devil a food means to combine it with hot or spicy seasonings rendering it a deviled" Dish. In this case, serrano or jalapeno chiles are used to achieve the desired heat level.