Grind 2/3 of the nuts and grate the carrots. Preheat the oven to 180 ° C. Mix the sugar, eggs and oil into a creamy batter. Then stir in the nuts and carrots.
Add the rest of the ingredients except for the powdered sugar and stir until a smooth dough is formed. Put the dough in a 26-28 cm greased springform pan and bake for 25 minutes on the middle rack.
During the baking time, mix the powdered sugar with 15 ml of water to form the icing, decorate the cooled cake with the icing and the remaining nuts.