Copycat Oreo recipe by Mrs Ally

Ingredients

• 125g butter
• ¾ cup castor sugar
• ¼ cup brown sugar
• 1 egg
• 1 and ½ cups flour, lightly scooped
• ½ cup cocoa powder, good quality
• 1 teaspoon bicarbonate of soda
• 100g butter
• 1 and ½ cups icing