In a standing mixer combine sugar & eggs. Add chocolate mixture.
Fold in vanilla extract.
Add flour & salt and mix until just combined
Pour & spread into a greased 9x13 pan
Bake for 25 minutes
Frosting
In a microwave safe bowl combine chocolate chips and cream, microwave for 30 seconds then stir. Repeat one more time and stir until the mixture is smooth
In a standing mixer combine powdered sugar and butter
Pour chocolate mixture into the standing mixer and whip on medium high speed for 2 minutes until lighter in color & texture
Assemble
While the brownies are still warm, but not hot, cover in chocolate frosting.