INGREDIENTS
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For the Cake
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3 cups (12.75 ounces, 363 grams) all-purpose flour
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2 teaspoons (10 grams) baking soda
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1/2 teaspoon (2.45 grams) baking powder
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1/2 teaspoon (2.5 grams) salt
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1 cup (3.2 ounces, 92 grams) Dutch-processed unsweetened cocoa powder
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2 cups (16 ounces, 460 grams) strong brewed coffee
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1/2 pound (8 ounces, 227 grams) unsalted butter, softened, plus more for the pans
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3 cups (21 ounces, 600 grams) granulated sugar
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4 large (6.8 ounces, 193 grams) eggs, at room temperature
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For the Ganache:
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14 ounces (397 grams) coarsely chopped extra-bitter chocolate (minimum 70 percent cacao content)
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3 cups (24.36 ounces, 696 grams) heavy cream
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For Decorating/Serving:
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About 1/2 pound block bittersweet chocolate for chocolate curls for decorating, optional
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Whipped cream for serving, optional
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Fresh berries for serving, optional