teaspoon of salt, 1 1/2 teaspoons of vanilla and 4-6 tablespoons of milk. turn on the mixer adding the milk a little at a time until your icing is smooth and can be easily spread.
when the cake/cookies are cooled spread the icing into a nice even layer.
​the last step: in a mixing bowl add 1 cup of powdered sugar, 1 tablespoon of either creamy or crunchy peanut butter and 1-2 tablespoons of milk. while mixing add one tablespoon of milk first to see if it is the right consistency to dribble over cake/cookies with a fork, if not add more milk.
dribble the peanut butter mixture over cake/cookies with a fork 