For the crust:

• 1 1/2 cups graham cracker crumbs
• 3 tablespoons granulated sugar
• 5 tablespoons unsalted butter, melted

For the cheesecake filling:

• 16 ounces cream cheese, softened
• 1/2 cup granulated sugar
• 2 large eggs, room temperature
• 1/4 cup sour cream
• 1 teaspoon vanilla extract
• 1 tablespoon all-purpose flour

For the apple topping:

• 2 medium apples, peeled, cored, and finely diced
• 2 tablespoons unsalted butter
• 3 tablespoons packed brown sugar
• 1 teaspoon ground cinnamon
• 1/4 teaspoon ground nutmeg
• 1 teaspoon lemon juice
• 1 teaspoon cornstarch mixed with 1 tablespoon water

For the crumble:

• 1/2 cup all-purpose flour
• 1/4 cup old-fashioned rolled oats
• 1/4 cup packed brown sugar
• 1/2 teaspoon ground cinnamon
• 1/4 teaspoon salt
• 4 tablespoons cold unsalted butter, cubed

For the caramel drizzle:

• 1/3 cup caramel sauce
• 2 tablespoons chopped pecans, optional
• Pinch of flaky sea salt, optional