INGREDIENTS
1 cup
unsalted butter
1 1/2 cups
granulated sugar
3 larges
eggs
8 oz
sour cream
2 tsp
vanilla extract
3 1/2 cups
flour
2 tsp
baking powder
1 tsp
baking soda
1/3 cup
unsalted butter
2 cups
confectioners' sugar
1 1/2 tsp
vanilla extract
1/4 tsp
salt
2 tsp
corn syrup
1 tbsp
milk