This apple crumble cheesecake combines creamy cheesecake with spiced apple filling and golden crumble topping. No water bath required for perfect results.
Peel, core, and slice apples into ¼-inch pieces. In saucepan, melt butter with water, brown sugar, cinnamon, lemon juice, vanilla extract, nutmeg, and salt. Add apples, cover, and cook 10 minutes until tender. Stir in cornstarch slurry, cook 1 minute until thickened. Cool 30-45 minutes.
Preheat oven to 350°F and line 10-inch springform pan with parchment. Combine graham cracker crumbs, sugar, cinnamon, and melted butter. Press into pan bottom and bake 7-8 minutes until edges start browning. Cool completely.
Reduce oven to 300°F. Beat cream cheese, sugar, vanilla, cinnamon, and nutmeg until smooth. Mix in sour cream, then eggs just until combined. Sift in cornstarch and blend until smooth.
Mix flour, oats, brown sugar, cinnamon, salt, and melted butter until resembling coarse breadcrumbs.
Pour half cheesecake filling over crust. Add apple filling layer, then remaining cheesecake batter. Top with crumble mixture.
Bake at 300°F for 60 minutes until edges set and center jiggles like set Jell-O (150°F internal temp). Turn off oven, crack door, cool inside 1-2 hours.
Refrigerate at least 5 hours or overnight. Remove from pan and serve with caramel sauce if desired.
Notes
Use room-temperature cream cheese for smooth texture. Granny Smith or Honeycrisp apples work best.
Cool apple filling completely before assembly to prevent melting cheesecake layers.
No water bath required – low temperature baking ensures perfect results.
Total active time is 2 hours, plus 5+ hours chilling time for proper setting.