1 Let rice cool to room temperature.2 In a small bowl, mix vinegar, soy sauce, sesame oil, sugar, sesame seeds, and ginger together. Set aside.3 In a large bowl, place the rice and half of the dressing, mix. Add to the rice, onions, red peppers, snow peas, water chestnuts, cilantro, and chicken. Toss gently.4 Serve on Boston lettuce leaves and dust with chopped peanuts.