Cut bitter melon lengthwise and remove seeds and fibrous core then slice them crosswise into quarter inch thickness.
In a pot of boiling water, add 1 teaspoon of salt and blanch the bitter melon about 30 seconds. Drain the bitter melon and set it aside.
Place beef in a bowl and sprinkle with salt, pepper and sake. Set it aside.
Mix together oyster sauce, garlic and soy sauce in a small bowl. Set it aside
Heat large frying pan and add 1 tablespoon of cooking oil. Scramble eggs and take it out. Set it aside.
Return the frying pan to heat and add 1 tablespoon of oil. Add ginger and red pepper. When fragrant, add beef and saute until cooked through. Add bitter melon and scrambled eggs to beef then #4 (oyster sauce, garlic and soy sauce). Pour chicken stock and drizzle the dish with 1 tablespoon of sesame oil. Adjust seasoning. Serve hot.