1) Marinate liver with wine for about 5 minutes.
2) Heat oil and fry the garlic for a few seconds.
3) Next, add drained liver, ginger, spring onion and chilli (optional). Stir fry over high heat for a few seconds.
4) Add stock powder, soy sauce and sugar and continue stir frying for 1-2 minutes, till the liver is cooked.
5) Thicken with corn flour and serve immediately.