Indonesian Spicy Peanut Sauce (Cheating Recipe!)

There are many foods in Indonesia that requires peanut sauce as their dressing. This cheating sauce fits for Siomay, Batagor, Pecel, Satay, and Gado-gado.

On the day when I made batagor, I was too lazy to roast, peel, and grind the peanut. In addition, my blender was also broke, and it cannot process the peanut mixture so I should use the traditional mortar to crush them. Looking for alternatives, I was then thinking about the peanut butter. So is it possible? I found this recipe that allows me to use peanut butter as based for Satay peanut sauce. So it should be working on Siomay and Batagor too! For you who are currently not in Indonesia, I also listed the substitute for some ingredients that may do the trick. :)