INGREDIENTS
2/3 cup
unsweetened cocoa powder
1 tsp
baking soda
1 cup
boiling water
1/2 cup
butter (, melted)
1/3 cup
vegetable oil
1 3/4 cups
granulated sugar
1 1/2 tsp
vanilla extract
3/4 tsp
salt
2
large eggs
2
large egg yolks
1/2 cup
heavy cream
1 3/4 cups
all-purpose flour
1 cup
butter (, softened)
2 tsp
vanilla extract
1/2 cup
unsweetened cocoa powder
1 tbsp
milk
2 cups
powdered sugar