INGREDIENTS
2 cups
granulated sugar
1/2 cup
vegetable oil
2
large eggs
2
egg yolks
2 tsp
vanilla extract
1/4 cup
light sour cream
2 1/2 cups
all-purpose flour
3 tsp
baking powder
1 tsp
salt
1 1/4 cups
buttermilk
8 oz
dark chocolate, melted
1 1/2 cups
unsalted butter
4 1/2 cups
powdered sugar
1/3 cup
cocoa powder
1 tbsp
vanilla extract
2 tbsp
heavy whipping cream (or milk)