Sauce Portugaise — Garlic and Tomato Concassée

Portugaise is sauce tomate made more robust with the addition of garlic, onion, and fresh tomato concassée, producing a chunky, full-bodied preparation that sits between a classical French sauce and a Mediterranean stew base. Where sauce tomate is smooth and subtle, Portugaise is assertive — garlic-forward, with visible pieces of tomato that remind you this sauce is built from fruit, not from stock and roux alone. Sweat 1 finely diced onion and 4 minced garlic cloves in olive oil (not butter — this sauce belongs to the south) over medium heat until softened, 5-6 minutes. Do not brown the garlic — burnt garlic produces acrid, bitter compounds (acrolein) that no amount of tomato can mask. Add 500g of tomato concassée: ripe tomatoes, peeled (blanch 10 seconds, ice bath, skins slip off), seeded (halve crosswise and squeeze gently), and cut into 1cm dice. Season with salt, a pinch of sugar if the tomatoes are acidic, and a bouquet garni of thyme, bay, and parsley stems. Simmer for 25-30 minutes, stirring occasionally. The tomatoes should break down partially but retain some texture — this is not a purée. Add 200ml of completed sauce tomate or demi-glace for body and savour. Simmer 10 minutes more. Remove the bouquet garni. The sauce should be thick enough to mound on a spoon but loose enough to spread when the spoon tilts. Adjust seasoning. Portugaise accompanies fried or grilled fish, eggs, and vegetables — anything that benefits from a forthright tomato presence. It is the sauce that stocks every bistro kitchen in southern France, the preparation that appears on the plate when the menu says simply 'sauce tomate' and means it.

• Italian fresh tomato sauce follows nearly identical logic — garlic, olive oil, fresh tomatoes — but typically cooks shorter and uses less stock, producing a lighter, more tomato-forward result. → Sugo di pomodoro Italian