1-First Step: Prepare the crumb crust Mix 1.5 cups graham cracker crumbs, 1/3 cup melted butter, and 2 tbsp sugar in a bowl until it resembles wet sand. Press firmly into the bottom of a 9-inch springform pan using the back of a glass. Bake for 10 minutes to set. This crumb crust supports the weight of layers. For gluten-free, use certified crumbs. Cool slightly while making filling.

2-Second Step: Make the cheesecake filling In a large bowl, beat 24 oz softened cream cheese with 1 cup sugar until fluffy, about 2 minutes. Add 3 eggs one at a time, mixing well after each. Stir in 1 cup sour cream and 1 tsp vanilla until smooth. Avoid overmixing to prevent cracks. Pour over the baked crust. For low-cal, use light versions. Vegan adaptation: use plant-based substitutes here.

3-Third Step: Prepare the apple filling Peel, core, and slice 3 medium apples into 1/4-inch pieces. Toss with 1/4 cup sugar, 1 tsp cinnamon, and 1 tbsp lemon juice. Layer evenly over the cheesecake batter. Use Granny Smith or Honeycrisp for best hold. Microwave slices 2 minutes to soften and release juices if you want integrated flavor. This prevents sogginess in your apple crumble cheesecake slice.

4-Fourth Step: Create the streusel topping In a bowl, combine 1 cup flour, 1/2 cup oats, 1/2 cup brown sugar, and 1 tsp cinnamon. Rub in 1/2 cup cold butter cubes with fingertips until crumbly. Sprinkle generously over apples. Press lightly for even coverage. This streusel topping bakes to golden perfection.

5-Fifth Step: Bake the full apple crumble cheesecake Bake at 325°F for 50-60 minutes. Center should jiggle slightly but edges set. Turn off oven, crack door, and cool inside 1 hour to avoid cracks. Room temp cool another hour, then chill 4+ hours or overnight. For no bake cheesecake option, see variations below.

6-Final Step: Finishing touches and serving Run a knife around edges, release springform. Slice into 12 portions. Serve chilled with whipped cream. For clean cuts, use hot knife. This easy apple crumble cheesecake recipe yields moist, flavorful results every time.