Use enough oil, not so much that it covers everything.Buns,slice them thinly, heat the oil but do not make it too hot, using low to medium heat;Fire cakes,when frying, put a chopstick in the oil and wait until you see bubbles forming;Before frying, moisten the surface of the buns slightly;bun slicesthis will prevent excessive oil from penetrating inside, making them less greasy when eaten.