Skin mango. Cut out two ‘cheek’ and cut into thin slices.
Cut onion in half from ‘pole’ to ‘pole’. Cut each half into thin julienned slices.
Rinse twice both dried anchovies and dried shrimps. Dry anchovies in oven for 15 minutes at 100℃. Finely chop dried shrimp. Fry both ingredients until crispy brown.
Half red chilli pepper horizontally and scrape out seeds. Cut into thin strips. Finely chop Thai pepper. Add peppers to fish sauce. Add 50 ml water to plum sauce.