Turn the chicken breast in flour and then fry in very hot oil until crispy. Pour off the oil and keep about 2 tbsp.
Add garlic, onion, chilli and cashew nuts.
Season with fish, soy and oyster sauce, add tamarind paste and sugar, allow to caramelize. Mix everything well.
Add the spring onions and remove from the fire. Sprinkle with some chilli powder and serve. Serve with rice and a light beer.