Donna's Chocolate brownie

• Microwave 200g butter & 1 cup of cocoa - until the butter has melted.
• Add 1 1/2 cup sugar, 4 eggs, 1 tsp vanilla, 3/4 cup flour, 1 heaped tsp baking powder.
• Mix well & add 250g bag of Cadbury chocolate balls, mix again.
• Pour into a lined greased roll tin.
• Bake 150oC for 30-40 minutes.
• Slice into small squares when cool, dust with icing sugar before serving if desired (& go on serve it with whipped cream - what's a few other calories between friends).