This is the cake I made for my Mum's birthday today. It's a normal vanilla victoria sponge made with 4 eggs. The icing is made from cream cheese, icing sugar (I used golden), lime zest and lime juice. Then I topped the cake with yummy blueberries. I thought it looked a little like a hedgehog who's prickles have been squished!! Thankfully it tasted better than squashed hedgehog.