For the Brownie Base:

• 1/2 cup unsalted butter, melted
• 1 cup granulated sugar
• 2 eggs
• 1 tsp vanilla extract
• 1/2 cup all-purpose flour
• 1/3 cup cocoa powder
• 1/4 tsp salt

For the Mint Layer:

• 1/2 cup unsalted butter, softened
• 2 cups powdered sugar
• 2 tbsp heavy cream
• 1 tsp peppermint extract
• Green food coloring (optional)

For the Chocolate Drizzle:

• 1/2 cup dark chocolate, melted