Combine the chicken pieces, soy sauce, sherry, cornstarch, sesame oil, and ground pepper in a medium bowl.
Heat the canola oil in a large nonstick skillet over medium-high heat. Add the sliced ginger and crushed garlic, and stir-fry for 1 minute. Add the chicken mixture in an even layer, but do not stir for 1 minute. Stir-fry the chicken mixture for 4 minutes, or until the chicken is browned. Stir in the bell pepper pieces and crushed red pepper, and cook for 1 minute. Add the hoisin sauce and low-sodium chicken broth, and stir-fry for an additional 2 minutes, or until the chicken pieces are cooked through and the bell pepper pieces are crisp-tender. Stir in the peanuts.