For the Oreo Crust:

• 2 ½ cups Oreo cookie crumbs (about 25–30 cookies, crushed)
• 5 tbsp unsalted butter, melted

For the Red Velvet Cheesecake Layer:

• 16 oz (2 blocks) cream cheese, softened
• ¾ cup granulated sugar
• ¼ cup sour cream
• 2 large eggs
• 1 ½ tbsp cocoa powder
• 1 ½ tsp vanilla extract
• 1 tbsp red food coloring

For the Vanilla Cheesecake Layer:

• 16 oz (2 blocks) cream cheese, softened
• ¾ cup granulated sugar
• ¼ cup sour cream
• 2 large eggs
• 1 ½ tsp vanilla extract

For the Chocolate Ganache Topping:

• ½ cup heavy cream
• ¾ cup semi-sweet chocolate chips

For Garnish (Optional):

• Whipped cream
• Oreo cookie crumbs
• Whole Oreos