How to Make It
Beat cream cheese, butter, and vanilla with a stand mixer fitted with the paddle attachment on medium speed until creamy, 2 to 3 minutes.
Whisk together powdered sugar, cocoa, and salt in a medium bowl. Gradually add to cream cheese mixture, beating on low speed just until blended after each addition. Increase speed to medium, and beat until light and fluffy, 1 to 2 minutes.