Step-by-Step Instructions for Tiramisu Brownies

• Preheat your oven to 350°F (175°C) and line a 9x9" baking pan with parchment paper.
• In a bowl, mix the dark chocolate and cocoa powder, then set aside.
• Melt the butter in a saucepan until golden brown, then pour it over the chocolate-cocoa mixture.
• Stir the mixture until fully melted and smooth.
• Whisk together the room temperature eggs, granulated sugar, and brown sugar until thickened.
• Pour the chocolate mixture into the egg mixture while whisking constantly to avoid cooking the eggs.
• Gently fold in the all-purpose flour until just combined.
• Spread the brownie batter in the prepared pan and bake for 28-30 minutes.
• Cool completely, then refrigerate for 30-60 minutes.
• Beat mascarpone cheese until smooth, then add whipping cream, powdered sugar, and vanilla extract.
• Combine espresso powder with hot water and optional liqueur, mixing until dissolved.
• Dip ladyfingers briefly in the espresso mixture and layer them over the brownie base.
• Spread the mascarpone layer evenly over the ladyfingers.
• Cover and chill in the fridge for about 1 hour to set.
• Dust with cocoa powder before slicing into squares and serving.