INGREDIENTS
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1/2 gallon ice cream, slightly softened (see note)
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2 2/3 cups (about 13 1/3 ounces) all-purpose flour
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2/3 cup plus 1/4 cup (3 1/2 ounces) cocoa powder
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3/4 teaspoon salt
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1 cup (7 ounces) granulated sugar
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20 tablespoons (10 ounces) unsalted butter
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2 egg yolks
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2 teaspoons vanilla extract