INGREDIENTS
1 cup
or 230g) unsalted butter, softened to room temperature
1
and 1/3 cup (267g) granulated sugar
1
large egg
2 tsp
vanilla extract
3 cups
all-purpose flour (spoon & leveled)
2 tsp
cream of tartar*
1 tsp
baking soda
2
and 1/2 teaspoons ground cinnamon
1/2 tsp
salt
1/4 cup
granulated sugar
1 tsp
cinnamon