"Ebinger’s Blackout Cake is the chocolatey, moist and legendary cake from the popular Brooklyn bakery that disappeared in 1972...."
INGREDIENTS
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½ cup unsweetened Dutch-process cocoa powder
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2 tablespoons boiling water
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2 ounces unsweetened chocolate (chopped)
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¾ cup milk
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1 cup (2 sticks) unsalted butter, softened slightly
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2 cups sugar
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4 large eggs (separated)
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2 teaspoons vanilla extract
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2 cups all-purpose flour
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1 teaspoon baking powder
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1 teaspoon baking soda
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1 teaspoon salt
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1 tablespoon plus 1 ¾ teaspoons unsweetened Dutch-process cocoa powder
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2 cups boiling water
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¾ cup plus ½ teaspoon sugar
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1 ounce bittersweet chocolate (chopped)
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2 tablespoons cornstarch dissolved in 1 tablespoon cold water (see Note)
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¼ teaspoon salt
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1 teaspoon vanilla extract
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2 tablespoons unsalted butter
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12 ounces semisweet chocolate (chopped)
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12 tablespoons (1 ½ sticks) unsalted butter
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½ cup hot water
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1 tablespoon light corn syrup
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1 tablespoon vanilla extract