Preheat the oven to 350 degrees and line a baking sheet with parchment paper.
Whisk together the flour, baking soda, salt, and cinnamon in a medium bowl.
In a separate bowl, beat the softened butter and brown sugar until smooth. Add the egg and vanilla extract, then mix until combined.
Stir the dry ingredients into the wet mixture until a dough forms. Fold in the chopped apples and caramel candies.
Scoop rounded tablespoons of dough onto the prepared baking sheet, spacing them a few inches apart.
Bake for 10 to 12 minutes, until the edges turn light golden. Let the cookies cool on the sheet for 5 minutes before moving them to a wire rack.