Ingredients : 1 teaspoon sugar 1 tablespoon cornstarch 1 teaspoon MSG (optional) 1/4 cup oyster sauce 1/2 cup chicken stock 2 cups sliced lean pork (about 1 pound) 1 bunch (about 2 pounds) fresh brocolli, sliced 2 slices ginger, shredded 1 clove garlic, minced 1/4 cup vegetable oil 1/8 teaspoon salt 1/4 cup water