Why the yoghurt? It ain't Thai without it.
Best Thai should be pretty intense in sweet, sour, salty and hot, for those who aren't accustomed to cooking Thai cuisine. It can be quite a shock to the system the first time you taste it, but it is incredibly good imo...
I wanted to try it with yoghurt to see how it changes the taste. It dulled the heat a bit, but was a good sub. My mum and gf don't like coconut that much, so was checking to see if I could make something similar without losing taste.