Preheat your oven to 350°F (175°C).

In a large bowl, mix together the oats, flour, baking soda, cinnamon, and salt.

In another bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy.

Beat in the egg until fully incorporated.

Gradually add the dry ingredient mixture to the wet ingredients, mixing until just combined.

Fold in the diced apples and caramel pieces gently with a spatula.

Drop spoonfuls of the cookie dough onto a prepared baking sheet, spacing them about 2 inches apart.

Bake in the preheated oven for 12-15 minutes or until the edges are lightly golden.

Remove cookies from the oven and let them cool on the baking sheet for 5 minutes before transferring to a wire rack.

Enjoy your cookies warm or store them in an airtight container once fully cooled.