Pan-North Indian mithai tradition; barfi is produced in every mithai shop in India and the diaspora; regional variations include kaju barfi (cashew), pista barfi (pistachio), besan barfi (chickpea flour), and coconut barfi
Barfi (बर्फी — from Persian یخ, yakh, meaning ice) is a dense, creamy milk-fudge square made from khoya and sugar cooked together until the mixture reaches the 'thread stage' (एकतार, ek-tar — one-thread stage at approximately 105–107°C), poured into a greased tray, set at room temperature, and cut into diamonds or squares. The sugar cooking stage is the technical heart — below the thread stage, the barfi will not set and remains sticky; above it, the sugar crystallises and the barfi becomes grainy and dry. The thread test: take a small amount of sugar syrup between two fingertips — when a single thread forms as the fingers are pulled apart, the correct temperature is reached.
Exchanged as gifts at Diwali, Eid, and weddings. The silver leaf makes barfi visually festive. Eaten in small squares — the density means a single piece is satisfying.
{"The sugar must be cooked to the precise ek-tar (single-thread) stage — the instrument is the cook's fingers, not a thermometer, in the traditional method","Add khoya to the cooked sugar off the heat — the residual heat in the sugar is sufficient to combine; direct heat at this stage scorches easily","Pour into a greased tray immediately after combining — the mixture sets rapidly once the khoya cools the sugar","Allow to set completely at room temperature (not refrigerated) — refrigeration sets the exterior before the interior and produces an uneven fudge texture"}
A practitioner tests the thread with damp fingertips — the thread should stretch to 1–2 cm before breaking for the ek-tar (single-thread) stage; a two-thread stage produces a harder, drier barfi. The kaju (cashew) barfi variation replaces khoya entirely with ground cashew paste — the setting mechanism changes from sugar-khoya interaction to sugar-nut-protein binding. Silver leaf (vark, चाँदी का वर्क) applied immediately after pouring is the traditional decoration for wedding and festival barfi.
{"Under-cooking sugar — the barfi won't set and remains sticky","Over-cooking sugar — past the thread stage, the sugar crystallises and the barfi is grainy","Refrigerating to speed setting — produces uneven setting and surface condensation that makes the barfi sticky"}