Olasagasti Yellowfin Tuna Belly (Ventresca) in Olive Oil

Olasagasti has been honoring the art of preserving seafood for more than 100 years. The secret ingredient? The Cantabrian Sea, reaching across 500 miles of the Basque coast of Spain, with its pristine, chilly waters providing bounteous seafood like this luscious yellowfin tuna belly that's ideal in everything from salads to tuna melts.