1 and 1/2 sticks butter, room temperature
3 cups cake flour (all-purpose will work too if that is all you have)
1/2 teaspoon baking powder
1 1/4 cups sour cream (full fat stuff)
4 teaspoons pure vanilla extract
Caramel Frosting Ingredients
1/2 teaspoon salt (if needed)
2-3 cups powdered sugar, sifted