Fry the chicken breast fillet in portions (preferably in a wok) and set aside in a bowl. Then fry the onion and garlic until translucent. Add the cashew nuts and fry briefly. Add the pineapple and the chilli pepper and fry briefly. Deglaze with about 1 tablespoon pineapple juice and coconut milk. Add the spices including the chicken stock and the chicken. Let simmer on a low flame for about 10 minutes. Serve immediately.