Giant Chocolate Chip Birthday Cookie

I baked this as an experiment and oh my goodness was it delicious! My daughters said it would be great decorated like a Birthday Cookie that a certain cookie retailer sells.  Baked as one of 10yo's birthday cakes, this giant cookie cost £1.87 to make, without energy and decorating costs.  The High St retailler version costs £14.99 or more depending on your choice of decoration.  My version is 8 times cheaper!

I used a simple icing sugar and water icing to decorate the cookie, coloured with gel colours.  Cost of icing was 60p for the icing sugar, I had the gel colours already but you can purchase them for around £1 and they last a very long time as you don't need to use much.  You could of course use 30g cocoa (30p) to make chocolate icing, and save on cost.

Giant Chocolate Chip  Birthday Cookie

175g softened butter (56p)

200g granulated sugar (11p)

1 large free range egg (16p)

2 tsp vanilla bean paste (30p)

250g self raising flour (8p)

2 tsp baking powder (6p)

100g dark chocolate chunks, I chopped up a chocolate block (30p)

100g milk chocolate chunks I chopped up a chocolate block (30p)

Preheat your oven to 200C/Fan 180C/400F/Gas Mark 6.  Grease and line a 23cm/9 inch non-stick, loose based flan tin or springform cake tin.

Cream the butter and the sugar in a large bowl until pale and fluffy.  Add the egg and vanilla then beat again until completely combined.  

Sift the flour and baking powder into the bowl, then gently but thoroughly mix it until a soft cookie dough forms.  Add the chocolate chips and stir to distribute them evenly through the cookie dough.

Spoon the mixture into the prepared flan tin then spread out evenly, ensuring the top is level.  

Bake in the preheated oven for bake for 20-25 minutes until golden and a skewer inserted into the centre comes out free of crumbs or dough.

Allow to cool in the tin and gently turn out the cookie before serving in slices.