Melt the vegan margarine/shortening on stovetop. Lower heat and add peanut butter. Wait until peanut butter has mixed with the margarine/shortening and add vegan sugar by a cup at a time, stirring a lot. When you add the vegan sugar it will become a little sticky but keep stirring, and it should come out smooth. When done, put in a pan and chill.
Its so good I'm actually eating some right now. :]
Enjoy.