I worked at P.F. Chang's for 1 1/2 years and made the "special sauce" for the lettuce wraps for every single table I waited on there. This is what is in it.

All it is is potsticker sauce and you add your own amount of chili paste and Chinese mustard to it and mix it in.
Some people like to add a little soy sauce to add a savory flavor and others add chili oil to make it more spicy.

I always added a 1/2 tsp of chili paste and 1/2 tsp of chinese mustard to 1/4 cup of potsticker sauce. Then added just 3 shakes of soy sauce. Everyone loved my special sauce.

Enjoy, Jana