Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans, then line the bottoms with parchment paper. This prevents sticking.

In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, baking soda, salt, ground cinnamon, ground nutmeg, and ground ginger until all dry ingredients are well combined.

In a separate medium bowl, whisk together the vegetable oil, large eggs, and vanilla extract until the mixture is smooth and evenly incorporated.

Pour the wet ingredients into the dry ingredients. Mix with a rubber spatula until just combined. Be careful not to overmix, as this can lead to a dry cake.

Gently fold in the finely grated carrots and chopped pecans (if you're using them) until they are evenly distributed throughout the batter.

Divide the cake batter evenly between your two prepared cake pans.

Bake for 30-35 minutes, or until a wooden skewer or toothpick inserted into the center of the cakes comes out clean.

Let the cakes cool in their pans on a wire rack for 10-15 minutes. After this initial cooling, invert them carefully onto the wire rack to cool completely. This is a crucial step before frosting.

In the bowl of a stand mixer fitted with the paddle attachment (or using a hand mixer), beat the softened cream cheese and softened unsalted butter on medium speed until the mixture is smooth and creamy, which usually takes about 2-3 minutes. Remember to scrape down the sides of the bowl as needed.

Gradually add the sifted powdered sugar, one cup at a time. Start by beating on low speed until the sugar is combined, then increase to medium speed and continue beating until the frosting is light and fluffy.

Beat in the vanilla extract and a pinch of salt until they are fully incorporated into the frosting.

If the frosting appears too soft, you can refrigerate it for 15-20 minutes to allow it to firm up slightly before you begin frosting the cake.

Once the cake layers are completely cool (this can take 1-2 hours), place one layer on your chosen serving plate or cake stand.

Spread about 1 to 1 1/2 cups of the cream cheese frosting evenly over the top of the first cake layer.

Carefully place the second cake layer on top of the frosted first layer.

Spread the remaining frosting over the top and sides of the cake, using an offset spatula to achieve a smooth and even finish.

If desired, garnish the cake with extra chopped pecans or finely grated carrot curls for decoration.

Refrigerate the cake for at least 30 minutes before serving. This allows the frosting to set properly, making for cleaner slices.