60g cocoa
100g caster sugar
100g soft brown sugar
180g self raising flour
2 eggs, beaten
60ml sunflower oil
80g dark chocolate chips
50g icing sugar

To make
Mix all the ingredients together, except the icing sugar, in a large bowl, when really well mixed, chill for an hour in the fridge. Tip the icing sugar into a small bowl and set aside.
Set oven 190c gas 5,  Line a baking sheet with non stick paper
Shape the mixture into walnut- size pieces, about 35/40gr. Coat each one in the icing sugar, place on the baking tray and bake for 10 minutes, cool on the tray.