This is an incredibly moist cake with a delicious maple frosting from"Ottolenghi: The Cookbook". by Yotam Ottolenghi and Sami Tamimi. This cake is great for making ahead as it actually improves with age. Ottolenghi, recommends double-wrapping the cake in cling wrap once cooled and leaving to mature for two to three days before icing. You also bake this cake in 2 pans (it will take about 45 minutes at 170 C).