Make the cookie dough

• Cream the butter with the brown sugar and granulated sugar until smooth.
• Beat in the egg and vanilla extract.
• Stir in the flour, baking soda and salt, then fold in the chocolate chips.

Shape the cookie

• Spread the cookie dough on a lined baking tray and press it down into an even layer.
• Score the dough into 8 sections with a knife.

Add the toppings

• Press the Kinder chocolate pieces into the top of the dough.

Bake

• Bake in a preheated oven at 180 °C until the edges are golden and the centre is just set.
• Let it cool slightly in the tray before cutting along the scored lines.