Julie, you've brought up a great point: fluid ounces are different than ounces by weight. Although 1 cup of water (or other similar liquids) is eight ounces, flour is lighter than this and actually weighs about half as much (4 1/4 ounces for one cup). If this seems hard to grasp, consider one cup of features vs. one cup of rocks--they won't weigh the same when placed on a scale. So for all the measurements given in ounces here, think of them as weights on a scale. Hope that helps! Kye@KAF

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