INGREDIENTS
1/2 cup
unsalted butter, softened
3/4 cup
granulated sugar
3/4 cup
brown sugar
1 tsp
cream of tartar
1/2 tsp
baking soda
1/2 tsp
salt
1/4 tsp
cayenne pepper
2
eggs, room temperature
1 tbsp
vanilla extract
1/2 cup
unsweetened cocoa
2 1/4 cups
all purpose flour
1/4 cup
granulated sugar
2 tsp
ground cinnamon