In order to make large pieces of beef more tender, you can first blanch the cut pieces of beef in boiling water, which can remove blood and impurities. Then, the blanched beef pieces were soaked in clean water for about 1 hour, and the water was changed twice to remove blood and reduce the fishy smell. This treatment can make beef more tender and smooth. Next, in the cooking process, you can stir-fry the beef until it becomes discolored, then add an appropriate amount of water, and then turn to low heat for about 30 minutes until the beef becomes soft and tender. This cooking method can keep the tenderness and taste of beef. Finally, you can add some seasonings and ingredients according to your personal taste to increase taste and nutrition.