The main course in the National Treasure menu is the Meat-Shaped Stone, which uses top-quality trotter meat that is stewed for two to three hours, cooled, and carved into shape.
國寶宴的主菜「肉形石」，則選用上等的蹄膀肉，先入鍋滷約 2 至 3 小時，靜置冷卻後再用刀工雕出外型。