Sonso is the Catalan name for two varieties of the sand eel species, namely the Mediterranean sand eel, and the smooth sand eel, both of which inhabit the sandy, coastal Catalan region.
The sand eel is a short-lived species that is characterized by a long, slender, and silvery body with whitish belly and flanks. The artisanal fishing of sonsos using sonseras (traditional boat seines) is strictly regulated, and it traditionally takes place in some limited ports.
The recipe is available for free-downloading.
