INGREDIENTS
1 cup
unsalted butter, plus more for pan
2 1/4 cups
all-purpose flour
3/4 cup
unsweetened natural cocoa powder
1 tsp
baking soda
1 tsp
salt
1/2 cup
milk
1/2 cup
sour cream
1 1/2 cups
sugar
4
eggs
1 tsp
vanilla extract
3 oz
bittersweet chocolate, chopped
1/2 cup
heavy cream
2 tbsp
unsalted butter