Arroz de lingueirão is a Portuguese dish prepared with rice and razor clams. The dish originated in the Algarve region, known for traditional seafood recipes. During the preparation, the razor clams are put into boiling water until the shells open.
That same water is then combined with rice, onions, garlic, tomatoes, and peppers before it's cooked over low flames. The last step is to add the razor clams and fresh coriander to the mix. The popularity of arroz de lingueirão and other dishes with razor clams caused the decline of local clam populations.