18 Ingredients
  • 1 stick unsalted butter, at room temperature, plus more for the pans
  • 2 1/2 cups all-purpose flour, plus more for the pans
  • 4 ounces semisweet chocolate, chopped
  • 1 1/2 cups whole milk
  • 1/2 cup unsweetened cocoa powder (not Dutch-process)
  • 1 1/2 teaspoons baking powder
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1/2 cup vegetable oil
  • 1 1/2 cups packed dark brown sugar
  • 1/2 cup granulated sugar
  • 1 tablespoon pure vanilla extract
  • 4 large eggs
  • For the frosting:
  • 24 ounces semisweet chocolate, roughly chopped
  • 1/3 cup light corn syrup
  • 2 1/2 sticks (20 tablespoons) unsalted butter, cut into pieces, at room temperature
  • 2 1/2 cups confectioners' sugar
Nutrition
1256
63% daily value
10 servings
                                       
                                            high-​fiber, vegetarian
     

Fat

110% 71

Saturated

185% 37

Trans

- 1

Monounsaturated

- 26

Polyunsaturated

- 4

Carbs

53% 160

Carbs (net)

- 153

Fiber

28% 7

Sugars

- 126

Sugars, added

- 123

Protein

23% 11

Cholesterol

54% 163

Sodium

16% 372

Calcium

18% 178

Magnesium

31% 130

Potassium

11% 521

Iron

29% 5

Zinc

21% 2

Phosphorus

46% 320

Vitamin A

36% 320

Vitamin C

- 0

Thiamin (B1)

27% 0

Riboflavin (B2)

32% 0

Niacin (B3)

15% 2

Vitamin B6

8% 0

Folate equivalent (total)

29% 115

Folate (food)

- 34

Folic acid

- 48

Vitamin B12

17% 0

Vitamin D

393% 59

Vitamin E

26% 4

Vitamin K

6% 8

Sugar alcohols

- 0

Water

- 63
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