Preheat stove at 350 degrees. Lightly spray a 9” round pan, with cooking Spray.
In a Bowl, add flour, baking soda, cinnamon, and salt, whisk well.
In a large bowl, using a hand mixer, add vegetable oil, sugar, brown sugar, vanilla extract, blend well, then add eggs one at a time, blending well after each one.
Add Step #2 into Step#3, in 3 stages and blend well.
Using a rubber spatula, add in pineapple, grated Nantes Carrots, mix well. Scraping the sides, until fully combined.
Pour batter into baking pan. Bake for 45min, until a toothpick is inserted in cake and comes out clean.
Remove from oven, allow to cool, and remove from pan.
For Frosting: In a bowl, add frosting ingredients, blend well, chill, until ready to frost and cake is completely cooled.