When oil is heated, saute the shallots to soften, then add the chillies and spices.
Fry until fragrant and the oil floats.
Add 1/2 liter of water as well as salt and tamarind.
Let it come to a boil point.
Add the mashed potato and crushed peanuts.
Stir in and the gravy is ready.
To serve, add the needed amount of noodles into a bowl, then goes in the eggs, bean sprouts, tofu and mint leaves. Pour the gravy over and serve immediately.