to 1 napa cabbage, washed, cleaned, sliced • Choy Sum or Chinese Flowery Cabbage, cut and make it into two : stems and leaves parts. Slice if it too long • to 2 carrot (s), halved lengthwise, sliced • red peppers, unseed, sliced • to 3 leeks, sliced • tbsps tomato ketchup • tbsps of Indonesian sweet soy sauce • to 4 tbsps of oyster sauce • of pepper • Salt • of sugar • chicken bouillon cube •