01 -
Preheat oven to 180°C. Line a baking sheet with parchment paper.
02 -
Combine butter and dark chocolate in a heatproof bowl over simmering water or microwave in 20-second intervals. Stir until completely melted and smooth.
03 -
Whisk in granulated sugar until dissolved. Incorporate eggs one at a time, mixing well, then add vanilla extract.
04 -
Fold in flour, cocoa powder, and salt until just combined. Refrigerate batter for 10 minutes to firm up.
05 -
Cream softened butter with brown sugar and granulated sugar using a mixer until light and fluffy. Beat in egg and vanilla extract.
06 -
Mix in flour, baking soda, and salt until just combined. Stir in chocolate chips. Refrigerate dough for 10 minutes.
07 -
Scoop a heaped tablespoon of chilled brownie batter and flatten in your hand. Place one square each of white, milk, and dark chocolate in the center. Wrap the batter around the chocolate to form a sealed ball.
08 -
Flatten 1 tablespoon of chilled cookie dough and gently press on top of the brownie ball to cover about half its surface. Place seam-side down on the prepared baking sheet. Repeat for all portions, spacing them 5 cm apart.
09 -
Bake for 13 to 15 minutes, or until the cookie top is golden and the brownie base is just set with a fudgy center.
10 -
Allow to cool on the tray for 5 minutes. Serve warm to enjoy the molten triple-chocolate center.