In Chengdu, there are many delicious instant-boiled mutton shops. Here are some recommended methods:

1. Xiaoguanmiao mutton soup pot: Xiaoguanmiao is a famous mutton soup pot in Chengdu. There are many mutton soup pot shops, among which the old Beipinglou instant-boiled mutton is the most popular.

2. Wolf pit meat: Wolf pit meat is a unique mutton food in Xinjiang, and there is also a popular Wolf pit butcher shop in Jinsha Road, jinniu district.

3. Shu Jiuxiang Hot Pot: Shu Jiuxiang Hot Pot is a restaurant mainly engaged in Sichuan-style hot pot, but it also has very delicious instant-boiled mutton. It is located in the fourth section of Renmin South Road, Wuhou District.

4. Grassland Mongolian yurt: Grassland Mongolian yurt is located in Jinsha Road, Qingyang District. It is a restaurant mainly engaged in Mongolian hot pot, with a variety of mutton delicacies, including instant-boiled mutton and roasted mutton.

5. Huangcheng Mom: Huangcheng Mom is a restaurant mainly engaged in Sichuan-style hot pot, but there are also very delicious instant-boiled mutton, located in the third section of Hongxing Road, Jinjiang District.

Here are some Chengdu instant-boiled mutton restaurants that may satisfy you. You can choose a restaurant that suits you according to your tastes and preferences.