1 knob ginger, the size of three fingers
6 big garlic cloves
15 small dried chillies, not bird’s eye chillies
3 – 4 tablespoons (2 rounded Chinese soup spoons) fermented tua nao paste or substitute such as miso or Korean fermented bean paste
3 tablespoons raw cane sugar
1 tablespoon MSG
Salt, added depending on the saltiness of the khao soi paste
Pound the garlic in a mortar with half a teaspoon of salt for a minute and then add the ginger. When the paste is well integrated and squishy, remove it to a bowl and set aside.
String the chillies on a skewer and roast over the fire or gas flame or under an electric grill until semi blackened but not immolated. Deskewer into the empty mortar and pound until well mixed and broken up.
Then add thefermented bean paste and pound again. Put the ginger and the garlic paste back into mortar, pound a bit and add the sugar and MSG until all is well mixed. Taste and adjust the levels of salt, sugar and MSG to suit your own taste.