Preheat oven to 350 degrees. Spray a 8 or 9-inch square baking pan.
In a large bowl, whisk the flour, cocoa, and salt together.
In a large saucepan, melt butter and remove from heat. Stir in sugar and vanilla. Quickly whisk in eggs, one at a time.
Add butter mixture to flour mixture and stir until well blended.
Spread brownie batter into prepared pan. Bake at 350 degrees for 25-30 minutes. Allow to cool completely.
Meawhile, add the cream cheese, Nutella and powdered sugar to a bowl. Beat together with an an electric mixer until smooth.
In a separate bowl, beat cream with an electric mixer until stiff peaks form. Fold the whipped cream into the Nutella mixture. Spread mixture over the cooled brownies.
Refrigerate for at least 2 hours before serving, or until the cheesecake layer is firm.
Drizzle with Nutella if desired before serving. Serves 9.
