In a medium bowl, cream together the butter and confectioners' sugar until light and fluffy.
Add in the vanilla extract, milk, and salt and mix until combined.
Stir in the crushed graham crackers until fully incorporated.
Spread the icing over cooled desserts, or use as a filling between layers.
Interesting Facts
Graham crackers were invented in the early 1800s by Sylvester Graham, a Presbyterian minister who believed that eating a bland diet would help suppress sexual desires.
Graham crackers are usually eaten as a snack, but can also be used as a crust for pies and cheesecakes.
Graham cracker icing is a great way to add a sweet, creamy taste to any dessert.