Preheat your oven to 350°F (175°C). In a mixing bowl, beat the softened cream cheese until smooth, then gradually add the granulated sugar, all-purpose flour, vanilla extract, and ground cinnamon. Mix in the heavy whipping cream and eggs, ensuring a silky batter. Pour this mixture into a greased springform pan, and bake for 10 minutes at 350°F, then lower the temperature to 200°F for an additional 30-35 minutes, until slightly jiggly in the center. Allow to cool to room temperature, then refrigerate overnight.

Again, preheat your oven to 350°F (175°C). In a large bowl, whisk together the all-purpose flour, baking powder, ground nutmeg, ginger, cloves, and allspice. In a separate bowl, cream the softened butter and brown sugar until fluffy. Beat in the vegetable oil, eggs, and vanilla extract, mixing well. Gradually add the dry ingredients to the wet mixture, alternating with the milk, until you have a smooth batter. Pour into a greased baking pan and bake for 15-17 minutes, or until a toothpick inserted in the center comes out clean. Cool and refrigerate overnight.

In a mixing bowl, beat the softened unsalted butter on high speed until creamy and smooth. Gradually add the powdered sugar, followed by the ground cinnamon and vanilla extract. Slowly incorporate the heavy whipping cream, continuing to beat until the frosting is light and fluffy, achieving a spreadable consistency perfect for the Thanksgiving Piecaken.

Trim your cheesecake and spice cake layers to ensure they are all the same size for a professional look. Start by placing the cheesecake layer on your serving platter, generously frosting the top with the prepared frosting. Next, stack the spice cake layer on top and frost it as well. Finally, set the store-bought pumpkin pie on top, carefully frosting the entire assembled Piecaken. For a seasonal touch, feel free to sprinkle extra cinnamon on top.

Once assembled, refrigerate the Thanksgiving Piecaken for about 20-30 minutes to allow the frosting to set. This chilling time helps meld the flavors and makes slicing easier. Serve chilled, and enjoy the stunning layers of cheesecake, spice cake, and pumpkin pie that will surely impress your family and friends!