2 scallions, sliced thinly
1 inch piece of ginger, peeled and minced
2 cloves garlic, minced
1 egg
1 lb ground pork
1/2 tsp salt
1 tsp brown sugar
1/4 cup soy sauce
1 tsp sesame oil
2 tbsp cornstarch or flour
2 heads choi or about 1 lb of other greens, roughly chopped
1 tbsp vinegar, any variety except white distilled
2 cups chicken stock or water
cilantro, sesame seeds, and chopped peanuts (optional)