What are the basic components of Thai peanut sauce?

I've found so many different recipes online that I don't know which one to choose.

Some of the basic ingredients are peanut butter, soy sauce, rice wine vinegar, Sriracha, and maybe a bit of brown sugar?

I've made it in the past but it was always too tart, too spicy, not peanut buttery. Can someone tell me what all the basics are along with all the possible optional ingredients? I'd like to develop my own recipe eventually.

I'm putting it on chicken and I can't decide if I should marinade, slow cook, bake, or stir fry. Help, please?

bon appetit