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White Sugar Candy
Two cupfuls of white sugar, half a teaspoonful of cream of tartar, a cupful of cold water, and teaspoonful of butter. Boil without stirring.
A bare-bones boiled sugar candy of the kind every household book carried, written for cooks who already knew what to do with a syrup once it reached the right stage. The recipe gives no temperature, no time and no finishing instruction, so the missing information is most of the work.
- The hinge: cook to the hard-crack stageThe hinge: the recipe names no stage at all. For a pulled white candy the usual target is the hard-crack stage, around 300-310F (149-154C); below about 290F the candy stays tacky and will weep in a day, and much past 315F it takes on a scorched, bitter edge.
- Why you must not stirAgitating a boiling sugar syrup encourages stray crystals to seed the whole pan and turn it grainy. Leave the spoon out entirely, and wash any crystals off the sides of the pan with a wet pastry brush during the first few minutes.
- What the cream of tartar is doingIt is not a leavener here. The acid inverts a portion of the sucrose into glucose and fructose as the syrup boils, and those sugars interfere with crystal formation. Half a teaspoon to two cups of sugar is on the generous side, which should guard against graininess.
- The butterA single teaspoon in this quantity is not for flavour. It breaks the surface tension so the syrup does not boil over, and it greases the mass slightly for handling. Unsalted is the sensible default.
- The cold-water test, if you have no thermometerDrop a little syrup into a glass of cold water. At hard-crack it sets instantly into threads that snap cleanly between the fingers rather than bending. Anything that flattens or feels chewy needs more boiling.
- Finishing, which the recipe omitsPour onto a buttered marble slab or a buttered sheet pan. As the edges firm enough to handle, fold and pull with buttered hands until the candy turns opaque white and stiffens, then cut into pieces with scissors.
- Vessel and panUse a heavy saucepan at least three times the volume of the syrup; the mixture climbs sharply near the end. A thin pan will give hot spots and colour the candy.
- Yield and keepingTwo cups of sugar gives something close to a pound of finished candy, enough for a small dish. Wrap in waxed paper and keep airtight; humidity will make it sticky within a day or two.
Pulled white sugar candy belongs to a family of household sweets that ran from taffy-pulls to barley sugar, all of them variations on one skill: boiling a sugar syrup to a known stage and knowing what to do with it. Cream of tartar, a by-product of winemaking sold cheaply by every grocer, was the domestic cook's insurance against graininess long before commercial glucose syrup was a pantry item. Taffy-pulling as a social evening for young people is well attested in American and British sources through the nineteenth century. The instruction "boil without stirring" is the entire technical content the author thought necessary, which says a good deal about what the reader was assumed to know already.