"Mixed in one pan, these brownies are favorites of actress Katharine Hepburn...."
INGREDIENTS
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1/2 cup (1 stick) butter
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2 (1-ounce) squares unsweetened chocolate
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1 cup sugar
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2 eggs
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1/2 teaspoon vanilla extract
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1/4 cup all-purpose flour
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1/4 teaspoon salt
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1 cup chopped walnuts (optional)