INGREDIENTS
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2/3 cup granulated sugar
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1/3 cup unsweetened cocoa powder
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1 tablespoon all-purpose flour
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1/8 teaspoon salt
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1/2 cup fat-free milk
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2 egg yolks
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4 egg whites
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1 teaspoon vanilla
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1/8 teaspoon cream of tartar
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Sifted powdered sugar (optional)