This recipe, like many of my brainwaves, came during a kitchen emergency. I was making salad dressing and realized I was out of both salt and soy sauce. I'd already mixed up most of it, so I cast around for something salty and came across my bottle of Red Boat fish sauce. Adding it slowly, I realized it gave the dressing a wonderful flavor, and made it sufficiently salty as well. Since I'd already added fish sauce, I added a few other Vietnamese-ish things I had lying around the house, and voila! A new salad dressing.