In a bowl, combine cornstarch, soy sauce, and sherry. Add pork and stir to coat, then stir in 1/2 tablespoon of oil and let stand for 15 minutes to marinate.
Parboil carrot in water (covered) for 5 minutes; drain.
In a bowl, combine chicken broth, vinegar, sugar, soy sauce, hoisin sauce, salt, and sesame oil.
Toast cashews in 1 tablespoon oil over medium-low heat until golden. Remove from pan and set aside.
Place a wok over high heat. When pan is hot, add 2 tablespoons oil. When the oil begins to heat, add ginger and stir once. Add pork and stir-fry until meat is lightly browned (about 4 minutes). Add carrot, bamboo shoots, and peas and stir-fry for 1 minute. Stir cooking sauce, add to pan, and cook, stirring, until sauce bubbles and thickens.
Stir in nuts into each serving. The nuts do not reheat well.