Sift all dry ingredients(flour, salt, baking soda, cinnamon) together set aside
In a stand mixer, using paddle attachment on medium speed, cream butter and shortening until well blended, add sugars, continue to mix, add eggs one at a time, until all ingredients are incorporated, scraping sides of bowl, frequently.
Slowly (on slow speed) add flour mixture a little at a time, until risk of flour flying out, is gone. Then increase speed to medium, continue mixing until it's the consistency of soft dough. Hand stir in nuts and cinnamon chips to dough until well blended. Cover and chill for an hour (or overnight is fine)
Line baking sheet with parchment paper. drop tablespoon size onto cookie sheet spacing 2 inches apart. Bake at 350: 10-12 minutes. Cookies will have a soft center with crispy edge. Sprinkle with sugar/cinnamon mixture while still warm. Cool, Enjoy!