This recipe is a family classic! They are the perfect dessert to take to a party or potluck dinner because they make so many (and they are so rich that you can only handle a small brownie at a time!). I am a sucker for anything with mint and chocolate together and these didn’t disappoint!
In a large bowl, whisk together melted butter and cocoa. Add sugar, eggs, vanilla and salt. Mix well, then stir in flour by hand. Do not over mix.
Spread batter in greased 12x17-inch cookie sheet and bake at 350 for 25-30 min. Cool and then put in the freezer for 20 minutes.
For frosting, mix butter, milk, powdered sugar and extract. If you want to add color, add your food coloring (you could also use red food coloring). Frost brownies and then put in freezer for another 20 minutes.
Melt chocolate chips and butter in a double boiler (or in the microwave) and spread on top of the frosting layer. Freeze another 20 minutes to set.