The article discusses the popular dish of zarandeados oysters in San Blas. This traditional dish involves grilling fresh oysters until they open up, then adding a special salsa made from tomatoes, onions, and other secret ingredients. The dish is known for its unique and delicious flavor, with the oysters being tender and juicy while the salsa adds a spicy and tangy kick. The dish is a favorite among locals and visitors alike, and is often enjoyed with a cold beer or a margarita. The article highlights the importance of this dish in the culinary culture of San Blas, and how it has become a must-try for anyone visiting the area.