In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.
Add the eggs one at a time, mixing well after each addition, then add the vanilla extract.
In a separate bowl, whisk together the flour, cocoa powder, baking soda, and salt. Gradually add to the wet ingredients, mixing on low speed until just combined.
Fold in the chocolate chips and chopped caramel candies.
Scoop rounded balls of dough onto the prepared baking sheet, leaving space between each cookie.
Bake for 10-12 minutes, until the edges are set but the centers are still soft.
Allow to cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.
Notes
Store cookies in an airtight container at room temperature for up to a week.