Crafting your Carrot Cake Cheesecake with Creamy Topping is straightforward when you follow these steps:

1. Preheat Oven: Begin by preheating your oven to 325°F (163°C). Prepare a 9-inch springform pan by greasing it lightly.

2. Make the Crust: In a bowl, combine the graham cracker crumbs, melted butter, and granulated sugar. Mix well and press this mixture firmly into the bottom of the springform pan. Bake for about 10 minutes, then set aside to cool.

3. Prepare Carrot Cake Layer: In a large bowl, whisk together the flour, baking powder, baking soda, cinnamon, nutmeg, and salt. In another bowl, mix the vegetable oil, granulated sugar, and eggs until well blended. Gradually incorporate the dry ingredients.

4. Add Carrot and Pineapple: Fold in the grated carrots, crushed pineapple, and walnuts (if using) until evenly distributed.

5. Bake Carrot Cake: Pour the carrot cake batter into the springform pan over the cooled crust. Bake for 30 to 35 minutes, or until a toothpick inserted in the center comes out clean. Allow it to cool while preparing the cheesecake layer.

6. Make Cheesecake Layer: In a mixing bowl, beat the softened cream cheese until smooth. Gradually add the granulated sugar and vanilla, mixing until well combined. Add the eggs one at a time, blending just until combined.

7. Combine Layers: Once the carrot cake layer has cooled, pour the cheesecake layer on top of it carefully.

8. Bake Cheesecake: Return it to the oven for another 30 minutes, or until the center is slightly jiggly but set. Turn off the oven, crack the door, and let the cheesecake cool in the oven for 30 minutes.

9. Chill: Remove from the oven and refrigerate for at least 4 hours (or overnight) to set completely.

10. Prepare Creamy Topping: In a mixing bowl, whip the heavy cream with powdered sugar and vanilla until soft peaks form.

11. Top the Cheesecake: Once the cheesecake is set, spread or pipe the whipped cream topping evenly on top.

12. Garnish: Optionally, sprinkle additional walnuts or grated carrot on top for decoration.