Cake with Cream Cheese Frosting

Ingredients
FOR THE CARROT CAKE LAYERS:
- 1 1/4 cups unsalted butter (2 1/2 sticks), softened
1 1/2 cups dark brown sugar, loosely packed
3 large eggs
2 teaspoons vanilla extract
1 cup all-purpose flour
3/4 cup cake flour
2 teaspoons ground cinnnamon
1 3/4 teaspoons baking powder
1 teaspoon baking soda
1 teaspoon kosher salt
1/2 teaspoon ground nutmeg (or 10 to 12 microplane scratches of whole nutmeg)
1/4 teaspoon ground cloves
2 cups finely grated carrots (from about 1/2 pound whole fresh carrots)
8 ounces crushed pineapple, drained & squeezed of excess moisture
1/2 cup chopped walnuts

FOR THE CREAM CHEESE FROSTING: