Preheat your oven according to the tart shell package instructions. Arrange the 12 tart shells on a baking sheet and bake until lightly golden and cooked through. Set aside to cool.
In a bowl, beat the softened cream cheese, powdered sugar, and vanilla extract until smooth and creamy.
Add the diced apple, brown sugar, and cinnamon to a small saucepan over medium heat. Cook for about 5–8 minutes, stirring occasionally, until the apples are softened and coated in the cinnamon-sugar mixture.
Once the tart shells have cooled, spoon or pipe the cheesecake filling evenly into each shell.
Spoon the warm cinnamon apples over the cheesecake filling.
Finish each tart with a generous drizzle of caramel sauce.
Serve immediately or refrigerate until ready to enjoy!