Ingredients: Frosting,
7 ounces bittersweet chocolate, finely chopped, divided
1/2 cup heavy cream
2 tablespoons sour cream
Ingredients: Cupcakes
1/2 cup sour cream
1/3 cup hot coffee
1 cup (7 ounces) granulated sugar
1/3 cup canola oil
1 large egg
2 teaspoons vanilla extract
3/4 cup (3 3/4 ounces) all purpose flour
1/2 cup cocoa
1/2 teaspoon salt
1/2 teaspoon baking soda
1/2 teaspoon baking powder
