Chocolate 'Wheety' Slice- JANELLE BLOOM - 9Kitchen

Ingredients

• 100g dark chocolate, broken into squares (Club original)
• 125g butter, chopped, at room temperature
• ¼ cup cocoa
• 1 cup brown sugar
• 1 egg
• 1 tsp vanilla extract
• 1 cup self-raising flour
• ½ cup desiccated coconut
• 5 (about 1 ¼ cups) 'Weetbix', crushed
• Icing
• 200g dark chocolate
• ¼ cup sour cream