Combine chicken and cornstarch in small bowl. Toss to
coat.
Heat oil in large non-stick skillet or wok on medium heat.
Add chicken. Stir fry 5- 7 minutes or until no longer pink in center.
Remove from heat. Add onions, garlic, red pepper and ginger to skillet.
Stir fry 15 seconds. Remove from heat.
Combine vinegar, soy sauce and sugar in small bowl. Stir well and add
to skillet.
Return chicken to skillet and stir until chicken is well coated. Stir
in nuts.
Heat thoroughly, stirring occasionally. Serve over hot rice.