Preheat the oven to 350°F. Line baking sheets with parchment paper or silicone baking mats.
In a large bowl, use an electric mixer to combine the butter and shortening. Mix in the sugars, molasses, vanilla and eggs.
In a separate bowl, whisk together remaining ingredients (except for chips). Gradually mix dry ingredients into wet ingredients until ingredients are blended. Stir in the cinnamon chips.
Place spoonfuls of cookie dough on parchment-lined cookie sheets. Bake 10 to 12 minutes, until cookies no longer appear raw-looking in the middle. They will still be soft and tender, so let them cool on the cookie sheets for a few minutes before transferring them to a wire rack to cool completely.
Notes
Cinnamon chips can sometimes be tough to locate. Check to see if your market carries chips made by Hersheys. If not, ask the management if they will consider ordering them for you. King Arthur Flour's website sells them too. Or go to the Hershey site and use their product locator & they will give you the locations of the nearest markets that carry their cinnamon chips.