Mix together the softened butter, vegetable shortening, granulated sugar, eggs and vanilla.
Slowly add in the flour, cream of tarter, baking soda, salt and cinnamon. Mix together until dough is well blended.
Place the dough in the refrigerator for 1 hour to cool.
Once the dough has cooled, use a cookie scoop to make even dough balls. Roll each dough ball in colored sugar.
Place dough balls that are covered in sugar approx 2" apart on your cookie tray.
Place your cookie sheets in the oven and bake your cookies at 350° for 10-12 minutes. Cookies will appear cracked on top and not gooey in the cracks. Remove the cookies from the oven prior to them turning golden brown to have chewy cookies.
Let the cookies cool on your cookie sheets for 5 minutes prior to moving to cooling racks. Store in an air tight container after cooling.
Calories are calculated by a third party website and are based on ingredients used.