Shrimp With Chinese Greens Stir fry

1. If using frozen shrimp, defrost in the refrigerator. Rinse the shrimp under cold running water and pat dry with paper towels. Place the shrimp in a bowl and add the rice wine or sherry, 1/2 teaspoon salt and cornstarch, stirring in one direction (this is to make sure the marinade spreads evenly.)
2. Chop the bok choy stalks diagonally and the leaves across into 1 inch pieces. Wipe the mushrooms with a cloth or soft brush and cut into thin slices. If using Chinese dried mushrooms, soak in hot water for 20 minutes to soften. Drain the softened mushrooms, remove the stems and cut into quarters.
3. Preheat the wok and add 2 tablespoons oil. When the oil is hot, add the ginger. Stir-fry for about 30 seconds, until aromatic, then add the prawns. Stir-fry until they turn pink. Remove the cooked shrimp from the pan.
4. Add a bit more oil if needed so that there is about 1 1/2 tablespoons oil in the wok. Add the bok choy, mushrooms and 1/4 teaspoon salt. Stir-fry for 1 minute (Note: add a small amount of water or rice wine if the vegetables are a bit dry). Add the chicken broth, cover and cook for 2 more minutes.
5. Add the shrimp back into the pan. Add the sugar, soy sauce, and pepper. Give the cornstarch/water mixture a quick restir and add in the middle, stirring to thicken. Cook, stirring for another minute and serve hot.