"A copycat chocolate chip cookie recipe from the Levain Bakery, adapted from Lisa of Parsley, Sage and Sweet..."
INGREDIENTS
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1 cup cold butter, cut into cubes
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1 cup brown sugar
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1/2 cup sugar
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2 eggs
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1 teaspoon vanilla paste or extract
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1 teaspoon baking soda
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1/2 teaspoon salt
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1 tablespoon cornstarch
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3 cups flour
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2 cups semi-sweet chocolate chips (or discs)
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2 cups chopped walnuts, optional