Soffritto is the aromatic flavour base of Italian cooking—a slow, gentle sauté of finely diced onion, carrot, and celery (the 'holy trinity' of Italian cuisine, called odori or battuto when raw) in olive oil or butter until soft, sweet, and translucent, forming the foundational flavour layer upon which ragùs, soups, braises, and countless other dishes are built. The soffritto is to Italian cooking what mirepoix is to French—an aromatic base that provides depth, sweetness, and complexity to everything cooked upon it. The standard ratio is 2:1:1 (onion:carrot:celery by weight), though this varies by region and dish. The vegetables must be cut very finely (a fine dice of 2-3mm, or even a battuto—minced almost to a paste) so they dissolve into the dish during cooking. The cooking is low and slow: olive oil (in the south) or butter (in the north, or both combined in central Italy) is heated gently, the battuto is added, and it's cooked over low heat, stirring occasionally, for 10-15 minutes until the vegetables are completely soft, translucent, and beginning to turn golden at the edges. The soffritto should never brown aggressively—it should sweat and soften, releasing its sweetness gradually. The Neapolitan soffritto is different: it refers to a preparation of pork offal (lungs, heart, trachea) cooked in tomato and chilli—an entirely separate dish that shares only the name. The word 'soffritto' literally means 'under-fried' (sotto-fritto)—a gentle, partial frying that cooks without browning.
Onion, carrot, celery in fine dice (2:1:1 ratio). Cook gently in olive oil or butter. Low heat, 10-15 minutes, until soft and translucent. Never brown aggressively—sweat gently. The foundation of Italian soups, ragùs, and braises. Cut finely so vegetables dissolve into the dish.
A pinch of salt added at the beginning helps draw out moisture and speeds the softening. The carrot adds sweetness, the celery adds a vegetal backbone, and the onion provides the savoury base—all three are essential. For an exceptionally fine soffritto, pulse the vegetables in a food processor (but don't purée). Some dishes benefit from adding a small amount of pancetta or guanciale to the soffritto. The soffritto is ready when a spoon drawn across the pan leaves a momentary clear trail.
Cutting the vegetables too coarsely (they should be fine enough to dissolve). Cooking over high heat (causes browning instead of sweating). Rushing (a proper soffritto takes 10-15 minutes minimum). Using only onion (all three vegetables contribute essential flavours). Adding garlic at the beginning (garlic burns quickly—add later).
Marcella Hazan, Essentials of Classic Italian Cooking; Pellegrino Artusi, Science in the Kitchen