Oooo....when I saw the picture at http://nyonyafood.rasamalaysia.com/sambal-udang-recipe-prawn-sambal-recipe , I just had to try the dish. However mine was a little sour - probably too much Tamarind juice added but overall superb! Grinded those ingredients for the wet paste...oo la la...
I threw in some Petai as I thought it would suit the dish. Never liked Petai but this round was okay, a bit on the `smelly' side but I am able to cope with it considering the fact that I hate vegetables. I also added in Lemongrass stick for the extra fragrance and not to forget the most important ingredient - slices of Lime leaves....
Check out this site: http://www.friedchillies.com/index.php/articles/detail/my-amahs-sambal-udang-petai/
I used both recipes to produce this dish.