Braised sea cucumber with onion is a Chinese dish and a classic dish of Shandong cuisine. Shandong imported, with water-soaked sea cucumber and green onion as the main ingredients. The sea cucumber is tender and soft, and the green onion is fragrant, leaving no juice after eating. It is one of the "eight treasures of ancient and modern times". Onion is mellow and nutritious, nourishing the lungs and kidneys.