Sea Cucumber Braised Pig Trotter

Hai Can Hu Ti Zi belongs to the Xi'an official cuisine tradition (陕西官府菜), a lineage tracing to Tang Dynasty court banquets and codified in the Republican era by celebrated chefs Li Qinxi and Zhang Faheng — the first-generation masters of modern Shaanxi official cuisine. Their craft passed to a second generation including Jin Xuanmin, Cao Bingjun, and Zhang Shengcai, and eventually to Zheng Xinmin. In 2010, Zheng Xinmin and his disciple Guo Guoqiang revived official cuisine service at the Tang Dynasty Grand Premier's Mansion (Datang Boxiang Fu) restaurant beside the Big Wild Goose Pagoda in Xi'an, with Hai Can Hu Ti Zi as the prestige centrepiece. The dish also carries cultural symbolism: pig trotters (猪蹄, zhu ti) evoke the homophone zhu ti — vermilion inscription — recalling the Tang custom of scholars writing their names in red ink at the Goose Pagoda after passing the imperial examination. In 2011, the Shaanxi official cuisine craft was listed in Shaanxi's third batch of provincial intangible cultural heritage; in September 2018, the China Culinary Association formally designated the dish one of Shaanxi's Ten Classic Dishes.

Pig trotter skin arrives amber-lacquered and trembling with gel; the first bite yields a concentrated collagen richness, then the meat falls cleanly from bone. Sea cucumber above is smooth and springy — a deliberate contrast of heavy and light, sticky and gliding — united by the amber braising broth pooled below.

Pig trotter contains 20–30g of collagen per 100g of meat. During the initial braise at 90–100°C, the triple-helix collagen chains unfold and hydrolyze to gelatin, which disperses into the braising liquid and sets to trembling jelly when chilled. The 'hu' sealed-steam phase then creates a closed environment at approximately 100°C for 40 minutes, driving the molten gelatin into the sea cucumber tissue under even pressure. Sea cucumber's sulfated acidic polysaccharides are thermally stable at this temperature, preserving the animal's characteristic springiness even as it absorbs the trotter's richness — producing a one-heavy-one-elastic composite texture that neither ingredient achieves alone.