Grease oven proof tin and heat oven to 180˚C.
Whisk together the flour, sugar, and eggs in stages.
Fold the nutmeg, coconut, walnuts, grated carrots and oil into the mixture.
Put the cake mixture in the oven for 20 minutes, check with a skewer and return to the oven for 5 more minutes if needed.
Leave the cake to cool to an ambient temperature.
Beat together the icing ingredients.
Apply the icing mixture to the top of the cake.
Enjoy your homemade cake with a lovely warm cup of tea.