Ingredients
Equipment
Method
Prepare the crust
- Heat the oven to 350°F.
- Grease a 9x13-inch baking pan, then line it with parchment paper, leaving an overhang on the long sides.
- Stir the melted butter, graham cracker crumbs, and granulated sugar together.
- Press the mixture firmly and evenly into the pan.
- Bake the crust for 10 minutes.
- Set the pan on a rack while you prepare the filling.
Make the cheesecake
- Beat the cream cheese and granulated sugar in a large bowl until smooth, scraping down the bowl as needed.
- Beat in the eggs one at a time.
- Mix in the sour cream, vanilla, and flour just until combined.
Prepare the apple layer
- Toss the diced apples with the lemon juice, brown sugar, flour, and cinnamon until evenly coated.
Make the streusel
- Stir the flour, oats, brown sugar, cinnamon, and salt together.
- Cut in the cold butter with your fingers or a pastry cutter until the mixture forms coarse crumbs.
Assemble and bake
- Spread the cheesecake mixture evenly over the warm crust.
- Scatter the apple mixture over the cheesecake mixture.
- Sprinkle the streusel evenly on top.
- Bake for 40 to 50 minutes, until the streusel is golden and the cheesecake center is set; an instant-read thermometer inserted into the cheesecake layer in the center should read 160°F.
- Cool the bars in the pan on a rack for 1 hour.
- Refrigerate until fully chilled, at least 4 hours.
Finish the bars
- Warm the caramel sauce in the microwave in 10-second bursts until pourable.
- Drizzle the caramel sauce over the chilled bars.
- Lift the bars from the pan using the parchment overhang.
- Cut into 16 squares.
Notes
For neat squares, chill the bars fully before cutting and wipe the knife between cuts. Store covered in the refrigerator for up to 5 days; freeze yes, wrapped tightly for up to 2 months. For a gluten-free variation, use gluten-free graham crumbs and a 1:1 gluten-free flour blend.
