Chef Juliette
Sauce Bigarrade
Duck stock reduced dense, sharpened with an amber gastrique, then restored with orange, lemon, and fine blanched rind: Sauce Bigarrade teaches that clarity comes from balance, not sweetness.
Culinary Explorer
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Rouennaise Sauce
Created by Chef Juliette
Rouennaise turns a red-wine Bordelaise into Rouen’s duck sauce with sieved raw livers, gently poached until it gleams and coats the spoon. Keep it below a simmer, because boiling makes it grain.
Sauces & Condiments
French
Dinner Party
Special Occasion
20 min
Active Time
15 min cook•35 min total
YieldAbout 2 quarts
Sauce Rouennaise (Rouen duck-liver sauce) teaches the most delicate act of sauce-making: the liaison, a thickening finish added at the last moment. Here, raw duck liver is the liaison, and the one true thing is this: it must poach into the sauce without ever seeing a simmer. Gentle heat gives you velvet. Boiling gives you grains.
The original assumed a saucier on staff and a finished Sauce Bordelaise (No. 32) waiting beside a stockpot that never went cold. Your honest home equivalent is to prepare that referenced sauce ahead and begin here with it fully finished. A small processor replaces the brigade hand that pounded the livers, while the fine sieve stays because smoothness is part of the dish. The book’s ratio remains exact, four livers to each pint of sauce; keeping a saucier beside the pan through service was scaffolding, but the sieve and last-minute liaison must stay.
Finished correctly, Rouennaise is wine-dark and glossy, with the deep mineral savor of liver but no visible trace of it. Watch the final heating more closely than the clock. That narrow passage between safely poached and overheated decides the sauce, and it happens quickly.
Sauce Rouennaise belongs to Rouen in Normandy and to the city’s celebrated preparations of duckling à la Rouennaise. Rouen’s duck tradition includes sauces enriched with liver, blood, or juices pressed from the carcass, depending on the preparation and the kitchen. This classical entry represents the liver-bound branch: finished Bordelaise strengthened with sieved raw duck liver, not every pressed-duck sauce that carries Rouen’s name.
The technique, the tradition, and the story behind every dish.
Discover Culinary ExplorerIngredients
Sauce Bordelaise
Quantity
8 cups (1.9 L / about 2 kg) Sauce Bordelaise (No. 32)
raw duck livers
Quantity
16 (about 1½ pounds / 680 g)
thoroughly chilled and trimmed
| Ingredient | Quantity |
|---|---|
| Sauce Bordelaise | 8 cups (1.9 L / about 2 kg) Sauce Bordelaise (No. 32) |
| raw duck liversthoroughly chilled and trimmed | 16 (about 1½ pounds / 680 g) |
Equipment Needed
- •4-quart heavy saucepan
- •Fine-mesh sieve
- •Flexible bowl scraper
- •Small food processor
- •Instant-read thermometer
- •Whisk
- •Immersion blender for rescue
Instructions
- 1
Warm the Bordelaise
Pour the fully finished Sauce Bordelaise (No. 32) into a wide, heavy saucepan and warm it slowly to about 150°F (66°C). Keep the surface still, with no bubbling. The Bordelaise is a completed referenced preparation, so do not rebuild or alter it here; Rouennaise begins where that sauce ends.
A wide pan gives you better control than a narrow pot because the temperature changes more gradually and the whisk reaches every corner. - 2
Purée and sieve
Examine the chilled livers carefully, removing connective tissue, dark clots, and every green-stained trace of bile. Pulse them briefly in a small processor until fluid, stopping before the machine warms them. Press the purée through a fine-mesh sieve with a flexible scraper, working patiently until only fibers remain. The processor is home-kitchen scaffolding; the sieve is the dish.
- 3
Make the liaison
Take the warm Bordelaise off the heat. Add the sieved liver purée a few spoonfuls at a time, whisking each addition completely smooth before adding more. Scrape the pan well as you work. The sauce will turn slightly fuller in color and body, but it should remain fluid and glossy.
- 4
Poach without boiling
Return the pan to the lowest heat and stir continuously, reaching along the bottom and into the corners. Warm the sauce gradually to 165°F (74°C), then remove it from the heat at once. It should lightly nap the back of a spoon without looking set. If fine grains appear, stop immediately. Ça se rattrape: blend the sauce for several seconds, pass it through a clean fine sieve, and return it to the gentlest heat only if it has not yet reached 165°F (74°C). Never let it simmer.
Use a thermometer. The livers must be heated through for safety, but every unnecessary degree beyond that tightens their proteins and dulls the sauce. - 5
Strain and serve
Pass the finished sauce through a clean fine sieve into warmed sauceboats or a warm serving bowl. Serve it at once with carved duckling, especially duckling à la Rouennaise. If it must wait, hold it between 140°F and 150°F (60°C and 66°C) in a warm water bath for no more than twenty minutes, stirring occasionally. Do not return it to direct heat. À table!
Chef Tips
- •Order ordinary fresh duck livers from a butcher or poultry supplier, not enlarged foie gras. Keep them at or below 40°F (4°C), use them promptly, and discard any liver marked by green bile because that bitterness cannot be repaired.
- •The Sauce Bordelaise (No. 32) must be completely finished before you begin. This derivative is a last-minute liaison, not an invitation to fold two recipes into one hurried saucepan.
- •For a smaller table, quarter every quantity without changing the ratio: use 2 cups (475 ml / about 500 g) of finished Bordelaise and 4 duck livers. One cook, one stove, one evening.
- •Serve Rouennaise with roast or carved duckling and a restrained accompaniment that leaves room for the sauce, such as pommes Anna or buttered green beans. A structured red wine with fresh acidity suits the wine-dark sauce.
Advance Preparation
- •Prepare the Sauce Bordelaise (No. 32) up to two days ahead, chill it promptly, and reheat it gently before making the Rouennaise.
- •The duck livers may be trimmed and sieved up to two hours ahead. Cover the purée directly and keep it thoroughly chilled.
- •Do not add the liver liaison until shortly before serving. Finished Rouennaise dislikes reheating and loses its fine texture if held too long.
Frequently Asked Questions
Nutrition Information
1 serving (about 60g)
Calories
80 calories
Total Fat
4 g
Saturated Fat
1 g
Trans Fat
0 g
Unsaturated Fat
2 g
Cholesterol
115 mg
Sodium
300 mg
Total Carbohydrates
4 g
Dietary Fiber
0 g
Sugars
1 g
Protein
7 g
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