INGREDIENTS
1 cup
butter, room temperature
3/4 cup
granulated sugar
1/2 cup
light brown sugar
1
egg, plus 1 yolk
1 tbsp
vanilla
1 tsp
baking soda
1 tsp
cream of tartar
1/2 tsp
kosher salt
1 tsp
ground cinnamon
2 3/4 cups
flour
1/4 cup
granulated sugar
1 tbsp
ground cinnamon