"Three layers of rich, moist chocolate cake and two layers of creamy chocolate pudding. Fans self..."
INGREDIENTS
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Unsalted butter, room temperature (for pans)
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¾ cup Dutch-processed cocoa powder, plus more for pans
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1½ cups all-purpose flour
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1½ teaspoons baking soda
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¾ teaspoon baking powder
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1 large egg, room temperature
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1 large egg yolk, room temperature
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1½ cups (packed) dark brown sugar
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¾ cup sour cream, room temperature
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5 tablespoons vegetable oil
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2 teaspoons vanilla extract
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¾ teaspoon kosher salt
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⅓ cup Dutch-processed cocoa powder
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5 tablespoons cornstarch
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1¼ cups heavy cream
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4 large egg yolks, beaten to blend
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1¼ cups whole milk
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⅔ cup (packed) dark brown sugar
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¼ teaspoon kosher salt
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4 ounces milk chocolate, chopped
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1 teaspoon vanilla extract
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1 cup heavy cream
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3 tablespoons golden syrup (such as Lyle’s Golden Syrup)
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⅛ teaspoon kosher salt
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12 ounces bittersweet chocolate, chopped
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¾ cup sour cream, room temperature
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2 tablespoons unsalted butter, room temperature