No-Sugar Plum Pekmez for Refrigerated or Frozen Storage
Pekmez od šljiva is a concentrated plum spread deeply familiar in Serbian cooking, and no-added-sugar versions are well established alongside sweetened ones. The simple ingredient list can be deceptive. When the only ingredient is fruit, ripeness, pan geometry and reduction are the whole recipe. Ripe plums supply both sweetness and pectin, while evaporation concentrates flavour and turns a loose fruit mass into a spoonable spread.
Very ripe plums are important because no sugar will be added later to correct tartness. After washing and pitting, the fruit is spread in a wide roasting pan. Width matters more than depth: a broad surface lets steam escape quickly, while a deep pot can take much longer to reduce. At 200 °C, the plums collapse, release juice and gradually darken as water leaves. Stirring about every twenty minutes prevents a dry ring around the pan from scorching before the middle has thickened.
Doneness is judged by movement, not by colour alone. Plum varieties differ, and a naturally dark fruit can look finished while still containing too much water. Draw a spoon through the centre of the hot spread. When the path closes only slowly rather than flooding at once, the mixture is concentrated enough to firm further on cooling. The approximate 900 g yield from 3000 g fruit reflects substantial water loss, but exact yield can shift with the variety and ripeness.
This formula deliberately stops at fruit reduction. It does not borrow processing times from a different high-sugar jam, and it does not treat a closed jar, inversion or oven heating of filled containers as a substitute for a complete tested preservation method. Instead, the hot spread is divided into shallow containers, cooled briefly, then chilled at 4 °C or below until cold throughout.
Use refrigerated pekmez within 4 days, or freeze portions for longer keeping and thaw them in the refrigerator. That short cold-storage approach sacrifices the convenience of a cupboard-stable jar, but it keeps the recipe honest about what has actually been controlled. The reward is a direct plum flavour: no cinnamon, rum or added sugar, just concentrated ripe fruit.