Milan, Lombardia — risotto alla Milanese is documented from the 19th century in Milanese sources. The tradition attributes its invention to a glassmaker's assistant who added saffron (used to colour stained glass) to a wedding risotto as a joke — the golden risotto was so good that it became the city's emblem.
Risotto alla Milanese is the most celebrated risotto in Italian cooking — a risotto coloured and flavoured with a generous infusion of saffron (the Milan tradition uses both stigmas and pistils for maximum fragrance), enriched with bone marrow (optional in modern versions but traditional in the 19th-century recipe) and finished with butter and Parmigiano Reggiano. The preparation represents the peak of Milanese bourgeois cooking: the rice of the Po valley, the saffron of the Arab-influenced spice trade, the bone marrow from the butcher's trimmings, and the Parmigiano from the Grana Padano zone. It is always served with ossobuco alla Milanese when the full tradition is observed.
Risotto alla Milanese plated is golden — the saffron colour has spread through every grain. The aroma is clean, floral, and luxurious. The rice moves as a gentle wave when the plate is tilted. The Parmigiano and butter mantecatura gives it creaminess without heaviness. The saffron flavour is warm, slightly metallic, and unmistakably exotic. With ossobuco alongside, it is the Milanese Sunday table at its most generous.
Infuse saffron (pinch of stigmas) in 2 tablespoons hot broth for 10 minutes minimum; the liquid should be deeply golden. Make soffritto: very finely minced shallot in butter with optional 1 tablespoon bone marrow (from the split shin bone). Add Carnaroli rice; toast 2 minutes (riso should appear slightly translucent at the edges). Add dry white wine; allow to absorb fully. Begin adding hot beef broth, ladle by ladle, stirring continuously and adding only when the previous ladle has been absorbed — 18-20 minutes. Two minutes before the end, add the saffron infusion. Off heat, mantecatura: stir in cold butter cubes and grated Parmigiano Reggiano until the risotto moves as a wave (all'onda). Serve immediately.
The Abruzzese saffron (from the L'Aquila province) is considered the highest quality Italian saffron; it is available from specialist Italian food suppliers. Bone marrow added to the soffritto is optional but transforms the risotto — the marrow enriches the base and contributes to the final silkiness. All'onda ('in waves') describes the correct consistency — the risotto should spread slowly when the plate is tilted, like a gentle wave.
Saffron added too early — added with the first ladle of broth, the saffron is denatured by 20 minutes of cooking and loses fragrance; add in the last 2 minutes. Insufficient saffron — the preparation requires a genuine pinch; a few threads produce a pale, lightly flavoured result. No mantecatura — the final off-heat butter-Parmigiano stirring is what creates the all'onda creaminess; skipping it produces a dry, separate rice.
Marcella Hazan, Essentials of Classic Italian Cooking; Giorgio Locatelli, Made in Italy