To marinade beef:

corn starch

oyster sauce

soy sauce

sesame oil

maggi sauce

white pepper

salted black bean and garlic (mash together)

oil (add last, after mixing all the other condiments)

To prep bitter melon:

Cut into thick slices. Soak it in salt water.

Directions

1. Stir fry beef under high heat. Then take out.
2. Drain bitter melon and stir fry it for 2 minutes. Then add shaoxing wine, oyster sauce, and sweet sauce.
3. Mix well and then add some water. Put beef back in, cook for 5 minutes.