Ingredients

1 1/2 pounds (6 sticks) butter, softened 

1 pound confectioners' sugar, sifted 

1 1/2 teaspoons vanilla extract 

1/4 teaspoon kosher salt 

5 tablespoons semisweet chocolate chips, melted and cooled 

Preparation

In the bowl of an electric mixer fitted with a paddle attachment, combine the butter, sugar, vanilla and salt. Begin beating on low speed, increasing to high for 2 minutes, scraping down the sides of the bowl occasionally. Stir in melted chocolate.