Step 1

In a large bowl, whisk together granulated sugar, brown sugar, eggs, oil, and vanilla extract until smooth.

Step 2

Add grated carrots and crushed pineapple, stirring until well combined.

Step 3

Gradually mix the dry ingredients into the wet ingredients until just combined. Do not overmix.

Step 4

Fold in chopped walnuts if using.

Step 5

Divide the batter between the prepared cake pans.

Step 6

Bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean.

Step 7

Beat cream cheese and butter together until smooth.

Step 8

Gradually add powdered sugar and mix until fluffy.

Step 9

Stir in vanilla extract and pineapple juice for extra flavor.

Step 10

Place one cake layer on a serving plate and spread with frosting.

Step 11

Add the second layer and frost the top and sides.

Step 12

Garnish with chopped walnuts or pineapple slices for decoration.