INGREDIENTS
1 cup
butter, room temperature (salted or unsalted)
1 cup
granulated sugar
1/2 cup
brown sugar, packed
2
large eggs
1 tsp
vanilla extract
2 3/4 cups
all-purpose flour (stir, spoon, & level)
1/2 cup
unsweetened cocoa powder
1 1/2 tsp
cream of tartar
1 tsp
baking soda
1/2 tsp
baking powder
1/2 tsp
salt
1/4 cup
granulated sugar
1 tbsp
ground cinnamon