1️⃣ Prepare the Red Velvet Cake Layer:

1. Preheat your oven to 350°F (175°C). Grease and flour one 9-inch round cake pan.
2. In a large bowl, sift together flour, sugar, baking soda, cocoa powder, and salt.
3. In a separate bowl, mix the egg, vegetable oil, buttermilk, vanilla extract, vinegar, and red food coloring. Gradually add the wet ingredients to the dry ingredients, mixing until smooth.
4. Pour the batter into the prepared pan and bake for 25–30 minutes, or until a toothpick inserted into the center comes out clean. Cool completely.

2️⃣ Make the Cheesecake Layer:

1. Reduce oven temperature to 325°F (165°C).
2. In a large bowl, beat cream cheese and sugar until smooth. Add eggs one at a time, mixing well after each addition. Stir in vanilla extract and sour cream.
3. Pour the cheesecake batter into a greased 9-inch springform pan. Bake for 50–60 minutes, or until the center is set. Let cool, then chill in the refrigerator for at least 4 hours or overnight.

3️⃣ Assemble the Cake:

1. Place the red velvet cake layer on a serving platter. Top with the cheesecake layer.

4️⃣ Add the Toppings:

1. Spread or pipe whipped cream around the edges and sprinkle with chopped nuts for a decorative finish.

5️⃣ Serve:

1. Slice and serve this indulgent dessert to impress your guests with its beautiful layers and delightful flavors.