Place the chocolate spread and butter in a saucepan or a microwavable jug.
In the microwave, heat on medium heat for 90 second bursts until melted, stirring between each burst until smooth. If using a saucepan, heat over low heat, stirring until the mixture is all melted and smooth.
In a mixing bowl, add the caster sugar, egg, flour, cocoa powder, chocolate chips and bicarbonate of soda and mix well.
Mix through the melted chocolate / butter mix.
Cover the bowl and place in the fridge for 20 minutes.
When ready to bake, preheat the oven to 180˚C / 350˚F.
Line a tray with baking paper.
Sift the icing sugar onto a plate.
Roll tablespoons of the mixture into balls and then roll in the icing sugar.
Place the ball onto the prepared tray and press down slightly. Place the balls about 6 cm apart to allow for spreading.
Bake for 12 minutes for softer biscuits or 15 minutes for crunchy biscuits.
Remove from oven and allow to cool on tray.
Decorate with melted chocolate, chocolate flakes and sprinkles if you wish
Nutritional information is an estimate and provided as a courtesy. The values may vary according to the ingredients and tools that are used. Please use your preferred nutritional calculator for more detailed information.