325²µ/11½´Ç³ú carrots, peeled and coarsely grated (you’ll need 275g/8oz prepared carrot)
4 unwaxed lemons, finely grated zest only
227g/8oz can pineapple slices in juice, drained and roughly chopped
1 tsp bicarbonate of soda
240g/9oz soft light brown sugar
2 tsp ground cinnamon
65²µ/2¼´Ç³ú icing sugar, sifted
pinch ground nutmeg
½ tsp flaked sea salt
250g/8oz self-raising flour
1 tsp vanilla extract
200ml/7fl oz vegetable oil, plus extra for greasing
75²µ/2½´Ç³ú walnut halves, roughly chopped
100²µ/3½´Ç³ú very soft butter
300g/10½oz full-fat soft cheese
2 large free-range eggs, beaten
100²µ/3½´Ç³ú mascarpone cheese
100ml/3½fl oz soured cream