Step 1: Preheat your oven to 350°F (175°C).
Step 2: Line your 9x9 inch baking pan with parchment paper.
Step 3: In a medium saucepan over low heat, combine the unsalted butter and dark baking chocolate, stirring until melted and smooth. Remove from heat and let it cool slightly.
Step 4: In a large mixing bowl, whisk together the granulated sugar and the melted chocolate mixture. Add the eggs one at a time, whisking until fully incorporated. Gradually add the all-purpose flour and mix until just combined.
Step 5: Pour the brownie batter into the prepared baking pan and spread it evenly. Bake for about 25-30 minutes.
Step 6: In a mixing bowl, beat together the softened cream cheese, softened butter, and peppermint extract until smooth. Gradually add in the powdered sugar, mixing until thick and spreadable. Add mint green food coloring.
Step 7: Once cooled, spread the mint cream cheese mixture evenly over the brownies. Drizzle with melted dark chocolate.
Step 8: Refrigerate for at least 30 minutes, then cut into squares.
