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PEACH FOAM (Invalid Cookery)
Peel and cut into small pieces three or four very ripe peaches. Put them into a basin, with four ounces of powdered sugar and the white of an egg. Beat this with a fork for half an hour, when it will be a thick, perfectly smooth, velvety cream, with a delightful peach flavour.
This is a raw preparation: nothing in it is ever heated, and it was written to be fed to the sick. That combination is the problem, and it is why the recipe belongs on the page as a historical document rather than as something to whisk up this afternoon.
- The egg white is never cookedThe whole method is beating raw white into a foam and serving it. Salmonella can be present inside intact, clean-looking shell eggs, and no step here brings the mixture anywhere near a temperature that would deal with it. Nineteenth-century cooks had no way of knowing this.
- The intended eater is the worst possible one"Invalid cookery" meant food for the convalescent, the elderly, the very young and the feverish — precisely the groups for whom an egg-borne infection is most likely to become serious. A dish that might be a minor gamble for a healthy adult was being aimed squarely at people who could least absorb it. If you want a soft peach cream for someone unwell, use a current recipe.
- "Powdered sugar" is not American confectioners' sugarIn a British book of this period the phrase generally means sugar ground fine, closer to what is now sold as caster sugar than to modern confectioners' sugar with its added starch. Four ounces is a little over half a cup by weight, a generous amount of sugar for three or four peaches.
- Half an hour with a forkThe stated time is plausible rather than rhetorical: hand-beating fruit pulp, sugar and white together to dissolve the sugar and pale the mixture is slow work, and what body it has comes from air worked in gradually rather than from whipping to peaks.
- The peaches do the work"Very ripe" is the operative instruction. Underripe fruit will not break down under a fork and the result stays stringy and thin rather than smooth.
- YieldThe recipe states no yield; three or four peaches with one egg white makes a small quantity, consistent with the single-invalid portions typical of the genre.
Invalid cookery had its own chapter in almost every large Victorian and Edwardian household manual, Cassell's included, because feeding the sick was a domestic duty rather than a hospital one. The rules were remarkably consistent across books: small quantities, delicate flavour, nothing greasy, and above all eggs and milk, which were regarded as concentrated nourishment that a weak stomach could take. Raw or barely cooked egg turns up constantly in these pages — in egg flip, in beaten egg stirred into beef tea, in wine whey — justified as concentrated, easily swallowed nourishment. Peach foam is that thinking applied to fruit: a white beaten into ripe pulp until it holds air, sweet enough to tempt an appetite that had gone, soft enough to swallow without effort. Recognition of egg-borne transmission of infection came later still, and it is the one thing this otherwise sensible little recipe could not have accounted for.