Culinary Notes
The "Tin" Method: Traditionally, kajmak is made by placing a sealed tin of sweetened condensed milk in a pot of boiling water for 3 hours. Warning: The tin must remain fully submerged in water at all times; if the water boils dry, the tin can explode under pressure.
Temperature and Texture: Kajmak is thermo-reversible. If it is too stiff to spread on a delicate cake, warm it gently in a bain-marie (a bowl over simmering water). It will loosen into a pourable sauce. Once it cools, it sets back into a firm, fudge-like consistency.
The Salt Balance: Because kajmak is aggressively sweet, it can be one-dimensional. Adding a generous pinch of Sea Salt transforms it into "Salted Caramel," which adds sophistication and prevents "palate fatigue."
Wafer Filling: One of the quickest traditional treats is Andruty—stacking thin dry wafers with layers of kajmak. To keep the wafers crispy, ensure the kajmak is not too watery and apply it in thin, even layers.