INGREDIENTS
1 1/2 cups
sugar
1/2 cup
unsalted butter, softened
2
eggs
1 tsp
vanilla
1/2 cup
sour cream
1/4 cup
cream cheese
3/4 tsp
baking soda
1/2 tsp
baking powder
3/4 tsp
salt
4 1/3 cups
all-purpose flour, more for dusting
1/2 cup
butter, softened
1/2 tsp
vanilla
2 cups
powdered sugar
3 tbsp
heavy cream
rainbow sprinkles, optional