Combine stock, sauces, honey, garlic, ginger and chilli in a bowl.
Heat oil in a large frying pan over medium-high heat. Season chicken with salt and pepper. Cook chicken, in batches, for 2 minutes or until browned. Transfer chicken to slow cooker. Pour sauce mixture over chicken. Cover. Cook on LOW for 3 hours (or HIGH for 1 hour 30 minutes) or until chicken is tender.
Add capsicum. Cover. Cook on LOW for 30 minutes (or HIGH for 15 minutes) or until capsicum is tender and sauce has thickened slightly.
Spoon chicken into a serving dish. Top with peanut, onion and extra chilli. Serve with rice.