Could I leave all other ingredient measurements the same if I use two chicken breasts?

I've made this with chicken breasts--it's really good--and I think you should double the sauce ingredients. You'll be sad if you don't have enough sauce.

Chicken breasts (and thighs) are so different in size that it's hard to say. I would probably 1.5 everything just to be safe, but I tend to like the sauce to coat the meat with a little leftover to moisten the rice.

Hopefully Frances will chime in. It looks delicious. Sort of kung pao chicken, but a little different.