Carrot cake

This is my go-to carrot cake recipe. I usually bake it for the playgroup. It's pretty easy and doesn't use any butter.
here's the recipe:

1 cup flour
1 tsp baking powder
1 tsp baking soda
1 tsp ground cinnamon
1 cup sugar
2 eggs
1/2 cup oil
21/2 cups grated carrot
Icing sugar or cream cheese icing

Sift flour, baking powder, abking soda and cinnamon into a bowl. Stir in sugar. Beat eggs and oil together. Add egg mixture and carrot to the dry ingredients, stirring until well combined. Pour mixture into a baking paper-lined 20cm ring tin. (I use a silicon mold) Leave to stand for 5 minutes. Bake at 180 degree celcius for 35 to 40minutes or until cake springs back when lightly touched. Leave in a tin for 10 minutes before turning on to a cooling rack. When cold, dust with sifted icing sugar, or ice with cream cheese icing.