Walnuts have bitter taste, which can be cooked in porridge or fried with sugar. The practice is as follows:

First, peel the walnuts and leave them.

Then, put a little sugar and a proper amount of water in the pot. After the fire boils, turn to low heat to boil the sugar. When the water is very thick, stir-fry the walnut kernel in the pot, evenly coat the walnut kernel with a thin layer of sugar, turn off the fire and let it cool.