"This Katharine Hepburn brownie recipe, made with all the usual ingredients, makes dark, rich, intense, chewy fudge brownies. An American classic and one of our most popular chocolate desserts...."
INGREDIENTS
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1 stick (4 ounces) unsalted butter
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2 ounces unsweetened chocolate
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1 cup granulated sugar
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2 large 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 roughly chopped walnuts