Fire first, blanch topaz, take it out for later use, and then cut the onion into sections for later use.
Then fire, put oil in the pot, fry the onions in the pot until they turn yellow, and take them out for later use.
Then fire again, put oil in the pot to preheat, add oyster sauce, soy sauce and water, and then add onion and topaz.
Finally, add pepper, salt and chicken essence to taste, turn off the heat and serve. Let's try to do it quickly!