INGREDIENTS
2 1/2 cups
all-purpose flour
1 tsp
baking powder
1/2 tsp
baking soda
1/2 tsp
salt
5 tsp
ground cinnamon
4
large eggs
2 cups
granulated sugar
1 cup
unsalted butter, softened
3 tsp
vanilla extract
1 cup
sour cream
1
cup unsalted butter, softened
5 cups
confectioners' sugar
2 tbsp
2% milk
1 tsp
ground cinnamon
1 tsp
vanilla extract
1 tbsp
cinnamon-sugar, sprinkle on top of cake