Made this tonight to go some Spring lamb and we loved it. We used to have Watercress grow in our stream bed, but not now. Nonetheless, we still love it and had a wonderful taste sensation with the red chilies, oyster sauce and basil. I didn't have thai basil, however; I had my own growing in the greenhouse. I used a mild yellow sauce in place of the yellow bean sauce and this was perfect. I did add some onion but other then that didn't change anything else. Thank you , mersaydees.