Core Viewpoint - The article discusses the cultural significance and variations of "扣肉" (braised pork), particularly focusing on its preparation methods across different regions in China, highlighting the influence of local ingredients and traditions [2][4][7]. Group 1: Preparation Methods - The most common preparation method for "盐菜扣肉" (salted vegetable braised pork) involves cooking high-quality pork belly, frying the skin, and steaming it with salted vegetables [2]. - Variations exist across regions, such as "咸烧白" (salty braised pork) in Sichuan, which uses different types of salted vegetables like winter vegetables and芽菜 (sprout vegetables) [4]. - In Guizhou, a unique version called "盐酸扣肉" (sour salted braised pork) is made with a special type of salted vegetable that includes ingredients like sweet wine, chili, garlic, and rock sugar, resulting in a distinct sweet and sour flavor [7][8]. Group 2: Historical Context - The dish "扣肉" is believed to have originated from Jiangnan and was introduced to the southwest during the Qing Dynasty, with references found in historical texts like "调鼎集" [4][5]. - By the Qing Dynasty's Xianfeng and Tongzhi periods, variations of "烧白" (braised pork) began to appear in Sichuan cookbooks, indicating its growing popularity [5]. - The influence of migration patterns, particularly the "湖广填四川" (Huguang filling Sichuan) movement, likely contributed to the spread and adaptation of "扣肉" in southwestern China [4][5].