1. Onion pickled into sweet and sour onion is particularly delicious. When pickling, it is necessary to prepare fresh onion with 2 kg of white sugar, 5 g of edible salt and 2 g, and also to prepare appropriate amount of rice vinegar and a small amount of light soy sauce. Remove the skin from the prepared fresh onion, cut it dry, then wash it with clear water, and then dry the water on its surface.

2. Cut the dried onion into four halves with a knife and put them in a clean pot. Put the prepared soy sauce rice vinegar, white sugar and edible salt in the pot and mix well. After boiling, cook for about 5 minutes, let it cool down naturally. After the juice in the pot cools down, pour it directly into the pot and let it drown all the onions inside. After pickling, take it out and eat it.