Pepper Steak(Another Version)

1 pound boneless sirloin steak

2 tablespoons cooking oil

1 garlic clove -- minced

1 teaspoon ground ginger

1 teaspoon salt -- optional

1/2 teaspoon pepper

3 large green peppers -- thinly sliced

2 large onions -- thinly sliced

3/4 teaspoon beef bouillon granules

3/4 cup hot water

1 can (8 oz) sliced water chestnuts -- drained

1 tablespoon cornstarch

1/4 cup soy sauce

1/4 cup cold water

1/2 teaspoon sugar

Cut steak into 2-in x 1/8-in strips. In a large skillet or wok, brown steak in oil. Add garlic, ginger, salt if desired and pepper; cook 1 minute. Remove meat and keep warm. Add green peppers and onions to skillet; cook and stir for 5 minutes or until crisp-tender. Dissolve bouillon in hot water; add to skillet with water chestnuts. Combine cornstarch, soy sauce, cold water and sugar; stir into skillet. Add meat. Cook and stir until mixture boils; cook and stir 2 minutes more.