To a food processor add the mango, red chilli, red pepper, ginger and garlic. Blitz into a smooth puree.
Add the rice vinegar, soy sauce, fish sauce, lime juice, sweetener and turmeric and blitz again until fully combined. Leave to one side.
Spray a frying pan with low-calorie cooking spray and set on a medium heat.
Fry the chicken for 3 minutes until browned on all sides. Add the onion and pepper and fry for a further 4 minutes.
Pour in the mango sauce and give the pan a stir. Add in the dairy-free coconut milk alternative and allow the pan to bubble for 8 minutes.
The sauce should have reduced and thickened slightly. Remove from the heat and serve with your choice of accompaniment.