Making an incredible carrot cake is straightforward if you follow these steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
2. Mix Dry Ingredients: In a large bowl, whisk together the flour, sugar, baking powder, baking soda, salt, and cinnamon.
3. Combine Wet Ingredients: In another bowl, beat together the oil and eggs until well mixed.
4. Combine Mixtures: Gradually stir the wet ingredients into the dry ingredients until just combined.
5. Add Carrots and More: Fold in the grated carrots, drained pineapple, walnuts, and raisins if using.
6. Divide Batter: Pour the batter evenly into the prepared cake pans.
7. Bake: Bake in the preheated oven for 35-40 minutes, or until a toothpick inserted into the center comes out clean.
8. Cool: Remove the cakes from the oven and let them cool in the pans for 15 minutes before transferring them to wire racks to cool completely.
9. Prepare Frosting: In a mixing bowl, blend the softened cream cheese and butter until creamy. Gradually add the powdered sugar and vanilla extract, mixing until smooth.
10. Frost the Cake: Once the cakes are completely cool, frost the top of one layer, place the second layer on top, and frost the top and sides of the cake.

Following these steps will guide you in creating a delightful carrot cake that is sure to become a family favorite.