Step 1

In the bowl of a stand mixer fitted with the paddle attachment or a large mixing bowl with a handheld electric mixer, beat the butter on medium-high speed until creamy and pale in color, about 5 minutes.

Step 2

Add half the confectioners' sugar and beat on low speed just until the sugar has fully moistened, then turn the speed up to medium-high and beat until well incorporated, about 3-5 minutes.

Step 3

Add the remaining confectioners' sugar and beat on low speed just until the sugar has fully moistened, then turn the speed up to medium-high and beat until well incorporated, about 3-5 minutes.

Step 4

Add the vanilla and salt. Turn the mixer on low speed and slowly add 3 tablespoons of the heavy cream. Turn the mixer up to medium-high and beat until the cream is well incorporated, about 3-5 minutes. (After 2 minutes stop and scrape down the sides and bottom of the bowl then continue mixing.)

Step 5

Check the consistency of the frosting and add more cream, 1/2 tablespoon at a time, if needed. The frosting should be soft and spreadable but not so loose that it doesn't hold its shape.