175g/6oz plain flour
1陆 tsp baking powder
陆 tsp bicarbonate of soda
250g/9oz caster sugar
40驳/1陆辞锄 cocoa powder
15驳/陆辞锄 cocoa powder
130驳/4陆辞锄 icing sugar
pinch salt
100ml/3陆fl oz sunflower oil
handful chocolate decorations
200g/7oz unsalted butter, softened
2 large free-range eggs
2 tbsp milk