The night of the day before Take out liquid chicken. Absorb water with kitchen paper. Tie it up with a string. Pour water of 300cc into a pressure cooker Put a metal basket. Close the cap and heat it by high flame.
Steam comes out.
Weaken fire, and pressurize it for 15 minutes. Stop and steam fire afterwards for 10 minutes. Keep it for 10 minutes opening a cover. Let chicken dry in a room. It is around 2 hours.