Besides doughs, Rulhman describes the ratios for batters (which make different cakes, muffins, and fritters), stocks, roux, meat mixtures (sausages, for example), fat-based sauces (such as mayonnaise and hollandaise), and custards. I am a grain-free cook, so I skipped over all the baked goods, but for those who make breads and cakes, I imagine this is the most useful part of the book. It's also extensive and detailed. This is a little ironic, since Ruhlman is trying to champion the idea that once you know the basic ratios you are freed from recipes and complications.
For my part, I was interested in the sauces most of all. I have dabbled in making mayonnaise and hollandaise before and I wanted to hone my skills. I think these are relatively easy to make (once you get the hang of them) and so delicious and impressive. Today's breakfast (see picture!) was poached eggs with hollandaise sauce and I think my sauce skills are getting better thanks to reading this book. Instead of attempting to distill Ruhlman's sauce-making advice, please have a look at this page on his website, which describes making hollandaise sauce almost as in the book, complete with helpful pictures.
The ratio to make hollandaise sauce is 5 parts butter : 1 part egg yolk : 1 part liquid (vinegar and water). My new insights thanks to Ratio were that the other liquids are more essential than I realised because they separate the fat molecules, thus producing the emulsion. This also explains why you use other liquids in mayonnaise (which is 20 parts oil : 1 part liquid plus egg yolk). Don't skip the vinegar or lemon juice and water at the beginning of making these sauces. And for hollandaise, add a little extra water as you go since the heating of the sauce vaporises some of the liquids.
Overall, I think Ruhlman is successful at showing that learning some cooking ratios can lead to easier daily cooking. I certainly feel that I can turn a basic mayonnaise into a chilli-lime sauce for steaks or a dill and mint sauce for lamb kabobs.
Next month the Kitchen Reader club is reading Food: A Love Story
Do you follow any recipe "formulas"?
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