I've seen many different ways to make them so I'll be brief on my strategy in putting this together.
I use my favorite brownie recipe. But I have all used store bought brownie mix in a pinch. Either way it's an elegant dessert for home or to bring to a party.
Once you have your brownie base, mix together 1 package of cream cheese, 1 egg, 1/2 cup sugar 1/2 teaspoon mint flavoring. Pour on top of brownie base and bake using your brownies directions. For the topping your can use a simple chocolate buttercream frosting or make a chocolate ganache.
1 Cup of heavy cream
12oz. chopped semisweet chocolate
1 teaspoon vanilla.
Heat heavy cream in a medium size sauce pan and bring just to a low boil and remove from heat. Place chips in cream and allow to melt. Give a good stir then add vanilla. Pour on top on brownie and allow to cool about 1 hour. I like to garnish with a mint leaf and a swirl of ganache.