Making Steps:
1. blanch beef first, not directly to the pot a throw regardless of, blanching know-how: in the pot put ginger and cooking wine to cook for 1 minute, and then put the fat cattle, fat cattle coloring immediately out, do not wait until the water boiled again. This way the fat beef tender, not fishy at all.
2. Heat the oil and fry the onions first, then put the beef rolls in when the onions are a little soft.
3. At the same time put green beans, then drizzle a little salt, soy sauce, rice vinegar and honey mixture, quickly tossed for 30 seconds. Finally, drizzle in the water starch and the sauce can be removed from the pan when it becomes thick.
Note: When blanching the fat beef rolls, put ginger and cooking wine in the water to remove the fishy effect. Don't put too much of the mixture of rice vinegar and honey, 30 ml will do, the ratio is 3:1.