CHOCOLATE AND MANDARIN ROULADE

Ingredients

• large free-range eggs
• granulated sugar
• self-rising flour
• cocoa powder
• mandarin, finely zested
• cocoa powder for dusting
• dark chocolate
• Lurpak® Butter Unsalted, room temperature
• icing sugar
• vanilla essence
• whole milk to loosen
• double cream
• dark chocolate , broken into small pieces
• granulated sugar, sieved
• skinned hazelnut kernels, lightly toasted in a frying pan and roughly chopped
• dark chocolate to grate over finished cake