I start by mixing crushed graham crackers with melted butter and sugar until it looks like wet sand. Then I press it firmly into the bottom of a lined springform pan, making sure it’s even. A short bake helps set the crust so it stays crisp under the filling.
I cook the diced apples with brown sugar, cinnamon, lemon juice, and cornstarch over medium heat. After a few minutes, the apples soften and the mixture thickens slightly. I let it cool so it doesn’t melt the cheesecake layer later.
I beat the softened cream cheese with sugar until smooth and lump-free. Then I add the eggs one at a time, followed by vanilla and sour cream. Mixing gently at this stage keeps the cheesecake creamy and prevents cracks.
I pour the cheesecake filling over the cooled crust and smooth the top. Next, I spoon the apple mixture evenly over the cheesecake layer. This creates a beautiful contrast once baked.
I rub cold butter into flour, brown sugar, and cinnamon until crumbly. The mixture should look rustic, not doughy. I sprinkle it generously over the apple layer for that classic crumble finish.
I bake the cheesecake until the center is just slightly wobbly. Overbaking can dry it out, so I keep a close eye near the end. Once done, I turn off the oven and let it cool gradually inside.
After cooling to room temperature, I refrigerate the cheesecake for several hours. Chilling helps the layers set and makes slicing clean and easy.