Carrot Cake with Cream Cheese Frosting

This has to be my all time favorite recipe. I was my Grandma Barbara's signature dessert. I can't make it without thinking of her.
2 1/4 cups flour
1/2 tsp. salt
1 tsp. baking powder
2 tsp. cinnamon

2 cups sugar
1 cup cooking oil
3 eggs
1 tsp. vanilla
1 cup chopped nuts(pecans or walnuts)
1 cup undrained crushed pinnapple
2 cups raw carrots

Sift dry ingredients. Cream sugar,oil, and eggs together. Add dry ingedients. Fold in nuts, carrots, pineapple and vanilla. Pour into greased and floured and 9"x13" pan. Bake at 350 for 35-44 min. (test with a toothpick)

Icing:
1 8oz. pkg cream cheese
1/2 cube butter
4 cups powdered sugar

Beat together cream cheese and butter. Add sugar and vanilla. Spread on cooled cake.