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Plain Oatmeal
If the coarse meal is used, allow one cup of oatmeal, four cups of water, one teaspoon of salt. Place the meal in the double boiler with the water and salt, and do not stir it. Cover the kettle tight, and keep the water in the under kettle boiling. The mush should cook four hours. This length of boiling is not possible before breakfast if done in the morning; therefore, the mush should be cooked the day before it is needed. Leave it in the kettle over night, and in the morning add one-half cup boiling water, replenish the hot water in the lower kettle, and set the whole to boil steadily one hour.
A wood- or coal-range recipe written for oats far coarser than anything in a modern canister. The instructions make sense once you know what "coarse meal" meant and what the double boiler was doing.
- What "coarse meal" isThis means steel-cut or pinhead oats, the whole groat chopped into hard fragments. Rolled oats, which the book treats separately, cook in ten to twenty minutes and will turn to paste under this treatment.
- The hinge: do not stirStirring steel-cut oats releases starch and makes the porridge gluey rather than nutty and distinct. The double boiler exists so the grain can sit undisturbed without scorching, since no direct heat touches it.
- Four hours is a range-era artifactA coal range already alight held gentle heat for hours, so a long, unattended cook cost little. Steel-cut oats at this ratio are fully tender in 25 to 40 minutes of direct simmering, or overnight in a slow cooker on low. The extra hours change texture more than doneness.
- The ratioOne cup oats to four cups water is correct for steel-cut and gives a soft, loose porridge. For a thicker result use three cups water. The teaspoon of salt is for the whole batch and is not excessive.
- Overnight holdingCooked cereal left at room temperature overnight is a *Bacillus cereus* risk that reboiling does not reliably undo, since the toxin is heat-stable. Refrigerate it instead and reheat with the half cup of boiling water in the morning; ten minutes is enough, not an hour.
- Double boiler substituteA heatproof bowl set over a saucepan of simmering water works, as does a heavy covered pot on the lowest burner setting with a heat diffuser beneath it.
- YieldOne cup of dry steel-cut oats makes roughly four servings, about a quart of finished porridge.
Long-cooked oatmeal came into American cookbooks by way of Scotland, where oats were the staple grain and porridge was salted rather than sweetened -- the teaspoon of salt and the total absence of sugar here follow that line. By the time the Butterick book appeared in the early twentieth century, breakfast cereals were also caught up in the health-reform enthusiasm of the period, and long, slow cooking in a double boiler was widely believed to make starch more digestible, a claim repeated in domestic-science manuals of the day. The instruction to cook the mush the night before is a reminder of how kitchens actually ran: a range banked with coal gave hours of low, steady heat for nothing, and, as the recipe itself says, there was no four-hour window before breakfast. Rolled oats, commercially milled in the United States from the later nineteenth century, were already displacing the coarse meal precisely because they cooked in a fraction of the time.