Oil pier is a street snack in Jiangsu, Zhejiang and Shanghai, also called oil terminal or oil pier. There are two kinds of oil chopping blocks, vegetarian stuffing, also known as radish cake, sweet stuffing with bean paste and meat stuffing with meat. Pour a little diluted batter into an oval iron spoon, add chopped green onion and shredded white radish, fresh meat or bean paste to make a round ball. Then cover it with batter and fry it in the oil pan. Because it is fried food, it looks yellowish brown and tastes crispy and delicious.

Snacks are the general name of a kind of food with specific style and characteristics in taste. Snacks with local materials can highlight the local material, culture and social life, which is an indispensable feature of a region, and it is also the main object of homesickness for homeless people. There are all kinds of snacks around the world, which are different from local customs, with distinctive features and unique flavors.