• Pre-heat your oven to 180C/350F.

Brownie mixture:

• In a small pot, brown the butter until golden and fragrant. Pour the brown butter into a small bowl and add in the chopped chocolate, instant coffee powder, cocoa powder and vanilla extract. Set aside to allow the chocolate to melt.
• In a separate bowl, add in the eggs, brown sugar and white sugar, and whisk until the eggs are pale and fluffy. Pour the chocolate mixture into the egg mixture and mix to combine. Add the flour and salt into the mixture and whisk to combine.

Choc Chip Cookie Mixture:

• In a bowl, beat together the butter and sugars until it's pale and fluffy. Add in the egg and vanilla extract, and whisk to combine. Add in the flour, bicarbonate soda and salt, and mix to combine. Lastly, add in the chocolate chips and stir to combine.
• Spread your brownie batter evenly into a lined baking tin. Scatter bite-sized chunks of cookie dough over the top, and bake for 20–25 minutes until a toothpick inserted into the centre comes out mostly dry (about 80%).