In a large mixing bowl, beat the softened cream cheese and butter together until smooth and fluffy.

Sift in the powdered sugar and cocoa powder to prevent lumps, then mix on low speed until combined.

Add the vanilla extract, salt, and heavy cream. Beat on medium-high speed until the frosting is creamy and spreadable. If needed, add more heavy cream, one teaspoon at a time, to reach your desired consistency.

Spread the chocolate frosting for brownies evenly over a fully cooled brownie base.

Slice, serve, and enjoy!