I got this recipe from a book I was reading, and just had to try it, and it was a huuuuge sucess!! save yourself from trouble and spray the measuring cup with PAM when measuring the molasses and peanut butter :)
Mix all ingredients, adding flour last, and drop by teaspoonful onto cookie sheet. bake at 375 for about 7-8 minutes, or until golden brown. Cookies will be a bit crunchy around the edges, but will literally melt in your mouth.