01
Start by preparing the chocolate, Smarties Eggs and Smarties, depending on what you are using. Roughly chop everything into small chunks, reserving around 50g of the Smarties Eggs and Smarties for decoration.
02
In a large mixing bowl, cream together the butter, soft light brown sugar and white granulated sugar using an electric whisk for about 2 minutes until fluffy and paler in colour.
03
Next, beat in the egg and vanilla extract until fully combined. Then add in the plain flour, cornflour, baking powder, bicarbonate and salt and mix to form a cookie dough. It may be easier to use your hands at the end to bring the mixture together.
04
Add in the chopped chocolate, Smartie eggs and Smarties and mix into the cookie dough until evenly distributed throughout.
05
Roll the dough into 12 large balls (about 70g each). Place onto 2 large baking trays lined with baking paper and flatten them slightly by gently pressing down on them with your hand. Then stick the reserved Smarties and Smarties Eggs into the cookies and chill them in the fridge for at least 60 minutes.
06
Preheat the oven to 200°C or 180°C fan. Bake the cookies in the preheated oven for 12-14 minutes until golden brown around the edges.
07
Place the tray onto a wire rack and leave the cookies to cool on the tray for at least 30 minutes until firm before serving.
