Make the brown butter base

• Whisk the browned butter with the brown sugar and granulated sugar until smooth and slightly thickened.
• Add the egg and vanilla extract, mixing until the texture is silky and uniform.

Combine the dry ingredients

• In a separate bowl, combine the flour, cornflour, baking soda and salt.
• Gradually fold the dry mix into the wet mixture, stirring just until a soft dough comes together.
• Incorporate the chocolate chips.

Chill the dough

• Refrigerate the dough to improve flavour and help it hold its shape during baking.

Shape into fries

• Preheat the oven to 175 °C (350 °F).
• Press the chilled dough into a rectangle about 1.5 cm thick, then slice into narrow strips.
• Place the strips onto a parchment-lined tray and freeze.

Bake

• Bake until the edges are lightly golden while the centres remain soft.
• If needed, gently neaten the shapes immediately after baking while still warm.