In a small bowl combine the garlic, ginger and chile paste. Mix together and set aside. In a second bowl mix together the orange juice, sherry, soy sauce and vinegar and sugar. In a third bowl combine the cornstarch with the water and mix until dissolved.
Heat 1 tablespoon oil in a large skillet over medium high heat. Saute chicken for about 3 minutes, until browned. Remove from skillet and set aside.
Heat 1 teaspoon oil in skillet and saute green onion, bell pepper and onion for about 3 minutes. Stir in garlic/ginger mixture and saute for 1 minute, stirring constantly. Add chicken and orange juice mixture and cook, stirring, for 2 minutes. Finally, stir in orange zest and cornstarch mixture. Heat through, stirring slowly, until sauce is clear and thick. Sprinkle with peanuts and serve.