Just add 1-1/2 cups water. Stay in. Eat like you didn't. At P.F. Chang's, our food is made from scratch, every day, in every restaurant - and when you can't make it to the restaurant, nothing comes closer to the flavors you love than our P.F. Chang's Home Menu. - Philip Chiang, Co-Founder. Chicken Tonkotsu: No preservatives; no artificial flavors; no artificial colors.