01 -
Preheat oven to 350°F (175°C). Line a 9 by 13 inch baking pan with parchment paper, allowing an overhang for easy removal.
02 -
Combine graham cracker crumbs, melted butter, granulated sugar, and cinnamon in a mixing bowl. Press the mixture firmly and evenly into the bottom of the prepared pan. Bake for 10 minutes, then allow to cool while preparing the next components.
03 -
In a large bowl, beat cream cheese and granulated sugar together until completely smooth. Add eggs one at a time, mixing well after each addition. Blend in the vanilla extract. Spread the mixture evenly over the cooled crust.
04 -
Toss diced apples with lemon juice, brown sugar, cinnamon, and nutmeg until evenly coated. Distribute the apple mixture evenly over the cheesecake layer.
05 -
Combine flour and brown sugar in a medium bowl. Cut in cold cubed butter with a pastry blender or forks until a crumbly texture forms. Stir in chopped pecans if using. Generously scatter the streusel over the apple layer.
06 -
Place the pan in the preheated oven and bake for 45 to 50 minutes, or until the streusel is golden and the cheesecake is set in the center. Remove from oven and cool completely at room temperature.
07 -
Transfer the cooled pan to the refrigerator and chill for at least 2 hours to fully set the bars before serving.
08 -
In a saucepan, combine granulated sugar and water. Cook over medium heat, stirring until sugar dissolves. Increase heat to medium-high, cooking without stirring, until the mixture turns a deep amber, about 8 to 10 minutes. Remove from heat and carefully whisk in heavy cream (mixture will bubble vigorously). Stir in butter and salt until fully incorporated. Allow sauce to cool slightly.
09 -
Cut chilled bars into 16 even squares. Right before serving, drizzle each bar with warm caramel sauce.