Tomato gives a flavor twist to the traditional Korean kimchi stew (kimchi jjigae). The tomato sauce in the kimchi stew will brighten up the flavor without tasting it.
Heat oil in a soup pot over medium hight heat. Add the pork and onion and cook for 2-3 minute until pork is no longer in pink.
Add the kimchi and sugar; continue to cook for 2 minutes. Add the rice starch water, tomato sauce, kimchi liquid; stir well and bring to a gentle boil. Over with a lid and reduce the heat to low. Simmer the stew for 15-20 minutes.
Add the tofu and green onion; heat through for 3-4 minutes. Season the stew with Korean soy sauce for soup according to your taste. Serve hot with rice