Mix the eggs together with the sunflower oil and sugar.
Sieve the flower and add to the mixture.
Add the carrots and mix together with a spoon. Add the chopped walnuts.
Butter a mold and put some bakingpaper in it.
Pour the batter into the mold and put in an over of 180 degrees for 1 hour.
Topping: mix the all ingredients together for a couple of minutes until you obtain a creamy topping.
Once the cake is baked, let it cool off. Then smear the cake with the creamy topping and finish with some crushed walnuts and almonds (or any other kind of nuts you like).
Buon Appetito!