First take 1 or 1 1/2 lb boneless chicken parts (thighs and breasts are great). Put in a large pot, cover with cold water, bring to a boil, then boil about two of three minutes, then remove from heat and cool. Keep cold until use.
Place sesame seeds in a small shallow pan and toast over low heat until they begin to turn golden. Set aside.
In a small bowl, cream together the peanut butter with about 1 tbsp sesame oil until smooth. Add the remaining ingredients one at a time, stirring as you go. Taste for heat and adjust according to taste.