17 Ingredients
  • 1 1/2 cups (3 sticks) unsalted butter, plus more for pan
  • 1 1/4 cups unsweetened Dutch-process cocoa powder
  • 1 1/4 cups hot water
  • 3 cups all-purpose flour
  • 1 1/4 teaspoons coarse salt
  • 1 teaspoon baking powder
  • 1 teaspoon baking soda
  • 2 1/4 cups granulated sugar
  • 4 large eggs
  • 1 tablespoon plus 1 teaspoon pure vanilla extract
  • 1 cup sour cream
  • 6 tablespoons unsweetened Dutch-process cocoa powder
  • 6 tablespoons hot water
  • 1 cup (2 sticks) unsalted butter, room temperature
  • 1/2 cup confectioner's sugar
  • Generous pinch of coarse salt
  • 1 pound semisweet chocolate, melted and cooled
Nutrition
890
45% daily value
12 servings
                                       
                                            high-​fiber, vegetarian
     

Fat

88% 57

Saturated

174% 35

Trans

- 2

Monounsaturated

- 16

Polyunsaturated

- 2

Carbs

33% 98

Carbs (net)

- 91

Fiber

30% 7

Sugars

- 64

Sugars, added

- 63

Protein

20% 10

Cholesterol

58% 174

Sodium

16% 388

Calcium

10% 103

Magnesium

29% 114

Potassium

12% 413

Iron

26% 5

Zinc

13% 2

Phosphorus

39% 274

Vitamin A

43% 384

Vitamin C

0% 0

Thiamin (B1)

19% 0

Riboflavin (B2)

21% 0

Niacin (B3)

12% 2

Vitamin B6

4% 0

Folate equivalent (total)

28% 110

Folate (food)

- 28

Folic acid

- 48

Vitamin B12

5% 0

Vitamin D

0% 1

Vitamin E

8% 2

Vitamin K

8% 6
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