Preheat the oven to 350 F. In a medium bowl, whisk together flour, salt, baking soda, and cream of tartar. In a large bowl, combine butter with both sugars until fluffy.
Add in egg and vanilla extract, and mix until smooth. Add in the flour mixture, mix until it is completely combined.
Fold in the chocolate chips. In a shallow dish, combine sugar and cinnamon. Roll the cookie dough into balls, and roll each ball into the cinnamon sugar mixture.
Place onto a large ungreased baking sheet. Bake for 10-12 minutes.
