1. Soak oysters in salty water for 10 minutes and remove; Rinse by rubbing in salty water; Remove and drain; Blanch in boiling water for 3 minutes; Remove and immediately soak in cold water for 10 minutes.
2. Rinse and cut leek into sections; Peel, rinse and mince garlic.
3. Add seasonings to a bowl and mix well.
4. Heat a wok with 2T oil over a high heat; Stir-fry garlic and salted black beans over a high heat till fragrant; Add leek and stir-fry over a low heat briefly; Add seasonings and t