Ingredients

Steps

• Grease two 20cm tins, line with parchment, and pre-heat oven to 180°C.
• Beat butter, sugar, eggs, flour, baking powder, and zest in a bowl for two minutes.
• Divide the batter between the tins and level the surfaces.
• Bake for 25 minutes until golden and springy.
• Cool in tins briefly, then transfer to a wire rack to cool completely.
• Mix filling ingredients and spread between the layers and over the top.
• Decorate the cake with spiralled orange zest.