Melt butter and chocolate in sauce pan. Remove from heat add salt and sugar. Mix in eggs, mascarpone cheese, and flour a little at a time stirring constantly, not to cook the eggs. Mix in baking chips, saving a few for the top.
Spray cooking spray in 9×12 pan spread mixture. Bake in 350° oven for 15 minutes or until toothpick comes out clean. Do not over bake.
Mix together the first 3 ingredients, then add the powdered sugar. Add the milk a little at a time until creamy and the thickness you desire. Mix the coloring in and your ready to frost your brownies.
Sprinkle top with remaining chips.
Double Chocolate Mint Brownies Recipe found on https://thissillygirlskitchen.com/double-chocolate-mint-brownies/ *All nutritional information is approximate and may not be 100% accurate. Please consult a nutritionist for more specific information.