Chicken

Dissolve cornflour in water and combine with sake, soy sauce and sesame oil; divide mixture in half
Place chicken in a dish with half the marinade, toss to coat, cover and refrigerate for 30 minutes
Combine remaining marinade with chilli powder, rice vinegar and brown sugar, add spring onions, garlic, water chestnuts and peanuts, and heat over medium until aromatic
Remove chicken from marinade and sauté in a large frying pan until juices run clear
Add sautéed chicken to the sauce and simmer until sauce thickens