Fresh Kajmak from Heated Milk and a Refrigerated Set
Kajmak is defined by what happens at the surface of heated milk. As hot milk cools in a broad shallow vessel, fat and milk proteins collect into a soft skin-like layer that can be lifted away, drained and salted. In Serbia the craft is strongly associated with rural dairy traditions, especially in central and western regions. Young kajmak is soft and mild; aged forms develop a sharper character through longer ripening.
Traditional household production is variable by design. Milk source, fat content, vessel width, cooling rate and ambient conditions all change the amount and texture of the layer. That variability is part of the product's character, but it also means a home recipe should be explicit about what it can and cannot reproduce. This version aims at fresh kajmak and deliberately does not imitate long raw-milk ripening.
Milk choice is decisive. Pasteurised but non-homogenised whole milk is used because homogenisation breaks fat globules into a stable emulsion that resists forming a thick cream line. Five litres may sound large for roughly 250 g of kajmak, yet the remaining partially skimmed milk is still usable food. The exact skim yield will change with the milk's fat content and season.
The milk is brought slowly to 90–95 °C, close to a boil, in a very wide heavy pan. After heating, it is divided into shallow vessels so the available surface area is as large as practical. An initial skin can begin while the milk stops steaming vigorously, but room-temperature exposure is kept below two hours. The remaining roughly 11 hours of the 12-hour set then happen under refrigeration at 4 °C or colder.
Cold setting makes the surface layer firm enough to lift with a skimmer. It should come away in soft sheets or thick clumps, not be whisked into a smooth cream. Excess milk drains for a few minutes before the salt is folded in. Three grams seasons the expected yield lightly; because yield can vary, the salt should be distributed gently rather than beaten.
The result is a fresh dairy spread with a high fat content and a distinct layered texture. It should be treated as perishable dairy, not as a shelf-stable preserve. Keep it refrigerated, work with clean utensils and use the batch within 3–4 days. The more complex flavour of matured kajmak belongs to a different process with its own controlled fermentation and safety considerations.
Use pasteurised non-homogenised milk with a visible cream line
Create a broad shallow milk surface for cooling
Do not stir or break the skin during the refrigerated set