In a bowl, put self-rising flour and add sugar.
Stir in vanilla essence, cinnamon powder, shredded carrots, & oil.
Stir vigorously
Add the walnuts
Grease a deep cake pan and bake for 50 minutes on 350 degrees C. Cool on a rack. I ice the cake the next day.
Mix all the ingredients together and whisk for about 5-7 minutes until the icing is smooth and creamy
If you like your cakes with less icing, use only half of each icing ingredients.