Prepare the crust by crushing 350 g Biscoff cookies and mixing with 150 g melted unsalted butter
Press the crust mixture into a baking pan
Make the cheesecake filling by beating 700 g softened cream cheese with 250 g Greek yogurt, 150 g granulated sugar, 1 tablespoon vanilla extract, and 1 teaspoon ground cinnamon until smooth
Add 4 eggs to the filling mixture and beat until combined
Prepare the apple filling by combining 4 medium sliced apples with ½ cup brown sugar, 2½ teaspoons ground cinnamon, ¼ teaspoon ground nutmeg, and 1 tablespoon water
Pour the cheesecake filling over the crust
Spread the apple filling over the cheesecake layer
Make the crumble topping by mixing ¾ cup all-purpose flour, ½ cup brown sugar, 1 teaspoon ground cinnamon, and 5 tablespoons melted unsalted butter
Sprinkle the crumble topping over the apple layer
Bake according to cheesecake baking instructions until set
Prepare salted caramel by heating 150 g granulated sugar, then adding 150 g heavy cream, 60 g unsalted butter, and ½ teaspoon salt
Drizzle the salted caramel over the baked cheesecake before serving
