The most important ingredient for prawn paste chicken – other than prawn paste and chicken – is water. Tapioca starch is also crucial. That's what Hong Kong Street Zhen Ji uses for its very popular har cheong gai. It's way better than cornflour.
2chicken legs, about 400 gwash, drain, chop chunky
¼cuptapioca starch
corn oil for deep-frying
Instructions
Add sugar, oyster sauce, water and har cheong to chicken. Stir thoroughly. Marinate 3-4 hours refrigerated, turning over once mid-way.
1 tbsp sugar, ½ tbsp oyster sauce, 2 tbsp water, 2 tbsp har cheong, 2 chicken legs, about 400 g
Bring chicken to room temperature. Shake off excess marinade from chicken. Dredge in tapioca starch till thinly coated. Pat lightly to get rid of excess starch.
¼ cup tapioca starch
Deep-fry chicken in moderately hot oil over medium heat till cooked through and lightly golden brown. Remove chicken to a sieve. Increase heat to high. Heat oil till just smoking. Refry chicken till golden brown. Drain in a sieve lined with paper towels. Serve immediately.