Into the heated oil, fry the salt fish pieces until crispy and remove. In the same oil, saute the shallots and garlic for 3-4 mins. Add in the blended chillies plus the belacan powder, sugar, curry leaves and salt fish. Cook till a thick sauce forms and the oil starts to float. A Add the mangoes and mix all together. Lastly, the salt fish goes in, 3-4 stirs and done.