Soup
water
yellow soy beans
mackerel fish head and bones
small dried scallops
ginger
chicken stock powder
salt
4 litres
100 gm
20 pieces
2-inch piece
3 teaspoon
To taste
1. Add everything into a pot and simmer for 45 minutes
2. Then add the stuffed bitter gourd and tofu and simmer for another 20minutes.