here is a friends recipe that everyone swears by ihave never used it but will try soon.
he just goes to walmart and gets some of those cookie dough things that are already shaped and just takes 1 gram and grinds it up and then mushes it around into the cookie.. he swears by peanut cookies maybe due to the oil? who knows.. and then just bake as suggested...
ive always used the butter method and then add it to a recipe or just dump the butter into a cupcake that i cut in half and then eat..