Be sure to have room temperature butter and cream cheese.

Gather all your ingredients, measure everything then set aside.

In a mixing bowl, add butter and mix until the butter is softened and has a bit of a white texture.

In the same mixing bowl, add cream cheese and mix on high speed until both the butter and cream cheese have mixed together.

Add the vanilla extract and salt.

Add in the powdered sugar one cup at a time and mix until the powder is fully incorporated into the batter.