250g butter, softened
250g brown sugar
5 eggs, separated
zest and juice of 1 orange
170g flour
1 tsp bakin powder
100g almonds, chopped
100g walnuts, chopped
250g carrots, peeled and grated
sea salt
For the Icing
150g mascarpone cheese
200g cream cheese
100g icing sugar, sifted
zest and juice of 1 lime
1. Preheat the oven to 180C. Beat the butter and brown sugar until fluffy. Beat the egg yolks in one by one and then add the orange zest and juice. Stir in the shifted flour and baking powder. Add the chopped almonds and walnuts and mix together.
2. In a separate bowl, whisk the egg whites with a pinch of salt until stiff, then fold them into the cake mix. Scoop the mixture into a buttered cake tin and bake in the oven for 45 minutes until golden and risen.
3. Leave the cake to cool for one hour until you put on the icing.
4. To make the icing, mix all the ingredients together and spread over the top of the cake. Finish off with a sprinkle of chopped walnuts.