Instructions

• Preheat the oven to 175°C (350°F).
• 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.
• Place on prepared baking sheet about 2 inches apart. Bake for 10 minutes, turning cookie sheet halfway through baking.