Or:

1 3 oz. package cream cheese
1/2 stick butter
1/2 box 10x sugar
1 tsp. vanilla

Depending on how much icing you like, is the one you use.

Carrot Cake Icing:

1 8 oz. package cream cheese
1 box 10x sugar
2/3 stick butter
2 tsp. vanilla

Cream all ingredients and frost cake.

Combine and sift all dry ingredients. Gradually beat in walnuts, oil, eggs, raisins and carrots. Pour into sheet pan or 3 8 inch layers.

Bake at 325°F for 35 minutes. Raisins are optional and the walnut are put on top of icing and not in the cake.