Sanhe Ni is one of the traditional snacks in Chengdu. It is usually made from a mixture of glutinous rice, soybeans and sesame seeds. It has a sweet taste and is a favorite delicacy of many Chengdu people. Here are some recommended places to eat Sanhe Ni in Chengdu:

1. Jinli: Jinli is one of the ancient commercial districts in Chengdu, with many traditional snack bars, including Sanhe Ni. In Jinli, you can find many authentic Sanhe mud at relatively affordable prices.

2. Kuanzhai Alley: Kuanzhai Alley is another historic commercial district in Chengdu, and there are also many traditional snack bars. In Kuanzhai Alley, you can taste various flavors of Sanhe Ni, which can also be tasted with other Chengdu snacks.

3. Wenshu Monastery: Wenshu Monastery is an ancient temple in Chengdu, surrounded by many traditional snack bars. In Wenshuyuan, you can find some time-honored Sanhe Mu stores with very authentic texture and taste.

4. High-tech Zone: The High-tech Zone is a modern commercial district in Chengdu, and there are also many snack bars. In the Hi-tech Zone, you can find some innovative flavors of Sanhe Mud, such as Cheese Sanhe Mud, Chocolate Sanhe Mud, etc.

To sum up, there are many places in Chengdu where you can eat Sanhe Ni. You can choose different places to taste according to your preferences and needs.