INGREDIENTS
3 cups
all-purpose flour, spooned & leveled
2 tsp
cream of tartar
1 tsp
baking soda
1 tsp
ground cinnamon
1/2 tsp
salt
1 cup
unsalted butter, softened
1 cup
granulated sugar
1/2 cup
brown sugar, lightly packed
1
large egg, room temperature
1
large egg yolk, room temperature
2 tsp
pure vanilla extract
1/4 cup
granulated sugar
2 tsp
ground cinnamon