Line a baking sheet with a silicone mat or parchment paper, set aside.

In bowl of stand mixer beat butter and both sugars until light and fluffy for about 2-3 minutes. With mixer on medium speed add in egg, yolk and vanilla. Beat for another minute, scraping the sides as necessary.

Turn mixer to medium low and mix in baking soda, cream of tartar, salt and cinnamon. Mix for 30 seconds, scraping sides as necessary.

Turn mixer to low and add in flour, mixing until just combined.

In a separate small bowl make your Cinnamon Sugar by mixing together cinnamon and sugar, stirring until evenly combined.

Using a cookie scoop or spoon, measure out about 2 Tbsp of dough and roll into a ball. Then roll each cookie dough ball into the Cinnamon Sugar mixture.