In bowl add your chopped chocolate and butter and melt in microwave for about 30 seconds at a time until smooth and creamy. Set aside to cool slightly.
Place your oven wrack in the bottom 1/3 of oven and preheat to 350.
Line a 9x13" baking pan with parchment paper, set aside.
Add your cooled chocolate to a large bowl and whisk in both your sugars.
Add in your eggs and whisk until combined fully.
Whisk in the vanilla until blended.
Fold in your salt, flour and cocoa powder.
Pour mixture into your prepared baking pan and bake for about 30 minutes or until center seems set.
Remove from oven to let cool completely.
Meanwhile to make your frosting beat together your butter and shortening.
Add in your extracts and beat until combined.
Adding one cup at a time mix in your powdered sugar until you reach your desired consistence.
Fold in your brickle bits.
Spread over cooled brownies and sprinkle with more brickle if desired.