Michael Ruhlman’s book Ratio promises a lot. He seeks to teach home cooks about the basic relationships between ingredients that form the basis of so many preparations – from custard to bread to sausages to mayonnaise. Bread, for instance, is 5 parts flour to 3 parts water. These relationships, ratios or “codes” for combining ingredients, are more fundamental than the specific weights and volumes of today’s flood of “new” recipes.

I was excited in anticipation of this book, but was greatly disappointed with the outcome from this otherwise good author. Ratios are a great approach to reviving cooking “sense”, but they require skill in definition and explanation. Somehow Ruhlman’s sense for communicating about cookery didn’t conquer the demands of explaining a mathematical relationship clearly to a range of possible readers. It was never going to be an easy task, especially when trying to apply chef sense to something which domestic cooks have largely forgotten. Nonetheless, despite its failings, the existence of this book is truly valuable and can be of utility to certain readers – those who are already familiar with ratios in cooking, perceptive novices who need no visual material, and perhaps some others who might want to explore their own understanding of cooking fundamentals.

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