• Pre-heat oven to 350 degrees.

  Line a 7x11 baking dish with parchment paper

Make the cookie layer

• In a medium bowl, whisk together the sugars and melted butter, then whisk in the egg and vanilla until smooth.
• Stir in the flour, baking soda and salt, just until the ingredients are combined.
• Press dough into the lined pan using your hands.
• Sprinkle with 2 oz of chocolate chunks and gently press them into the dough.

Make the brownie layer

• In a medium sized bowl, whisk together the sugar and melted butter. Then whisk in the egg and vanilla until smooth.
• Stir in the flour, cocoa, baking powder and salt, just unitl combined.
• Spread the brownie batter over the cookie layer, then sprinkle on the remaining 2 oz of chocolate chunks.
• Place in the oven and bake for approximately 40 minutes. You are looking for the edges to be set and the brownie to have cracks. It should still feel a bit soft, but should not jiggle.
• Remove from the oven and cool. Lift from the pan, using the parchment paper, and then cut into squares.
• Store in an airtight container.
• Serve and enjoy!