Heat a frying pan to medium heat. Add oil and chicken and sauté for 5-7 minutes each side until browned and cooked.
Add onions and peppers and sauté another 3-4 minutes.
Add sauce and turn heat up to bring to a simmer. Cook for 2-3 more minutes.
Garnish with chopped cilantro and peanuts and serve.
Notes
If sauce is too thick, add a little water or stock. If you prefer a spicier kick, add crushed chillies. Serve with Patak's Sweet or Hot Mango Chutney or Patak's Lime Pickle as a condiment.