Chef Juliette
Saddle of Mutton
Selle de mouton rôtie teaches that the roast is decided before the oven: trim cleanly, fold the flanks close, tie firmly, then carve rosy slices beside vegetables glossed with real butter.
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Rognons Sautés Bercy
Created by Chef Juliette
Based on No. 1330, Rognons Sautés Bercy, from Le Guide Culinaire (1907) by Auguste Escoffier
Lamb kidneys meet a fierce pan, then a shallot and white-wine reduction takes meat glaze, lemon, and cold butter: quick cooking with no room for hesitation, and a sauce worth every second.
Main Dishes
French
Weeknight
Quick Meal
Dinner Party
25 min
Active Time
15 min cook•40 min total
Yield4 servings
Rognons sautés Bercy (Bercy-style sautéed kidneys) teaches the speed of the sauté: the kidneys must brown before they can surrender their juices. Dry pieces, a broad hot pan, and no crowding give you bronzed edges and tender centers; hesitation gives you a grey puddle. The one true thing to know before touching the pan is simple: once the kidneys go in, everything else must already be measured.
The source formula assumed six mutton kidneys, a saucier at the range, and glace de viande (concentrated meat glaze) ready from a stockpot never off the fire. For four at home, four lamb kidneys replace the harder-to-find mature mutton kidneys, and a properly prepared meat glaze replaces that standing stockpot; the wine, glaze, shallot, and finishing butter are all reduced by exactly one-third. The stockpot and formal timbale are brigade scaffolding, so a bought or previously made glaze and a warmed serving bowl do their work. The hard sauté, the wine reduced by half, and the monter au beurre (off-heat butter mounting) stay. They are the dish.
Rognons sautés Bercy should arrive glossy, sharp with wine and shallot, and rich enough that the lemon registers only as a clean edge. Work fast, but don't hurry blindly. Dry and season the kidneys only when the pan is ready, then drain them the instant their cut faces are browned; that dry, brief sear decides the whole plate.
Rognons sautés Bercy belong to Paris, specifically Bercy on the Seine, where wine warehouses and merchants made white-wine-and-shallot preparations natural namesakes at the local table. In the classical repertoire, Bercy is not one rigid sauce used with everything: fish preparations build on their own stock, while these kidneys bind the wine reduction with glace de viande and butter. The dish passed from the wine quarter into the grand kitchen and returned naturally to the quick supper table, where its few-minute sauté still makes perfect sense.
The technique, the tradition, and the story behind every dish.
Discover Culinary ExplorerIngredients
lamb kidneys
Quantity
4 (about 9 oz / 250 g total)
outer membranes and white cores removed
fine sea salt
Quantity
1/2 teaspoon (2.5 ml / 3 g)
freshly ground black pepper
Quantity
1/4 teaspoon (1.25 ml / 0.6 g)
unsalted butter for sautéing
Quantity
2 tablespoons (30 ml / 28 g)
divided
shallot
Quantity
2 teaspoons (10 ml / 8 g)
very finely chopped
dry white wine
Quantity
1/4 cup plus 1 teaspoon (65 ml / 65 g)
prepared glace de viande
Quantity
1 tablespoon plus 1 teaspoon (20 ml / 25 g)
melted
fresh lemon juice
Quantity
1/8 teaspoon (0.6 ml / 0.6 g)
cold unsalted butter
Quantity
3 tablespoons plus 1 teaspoon (50 ml / 47 g)
cut into small pieces
flat-leaf parsley
Quantity
1 teaspoon (5 ml / 1 g)
finely chopped
| Ingredient | Quantity |
|---|---|
| lamb kidneysouter membranes and white cores removed | 4 (about 9 oz / 250 g total) |
| fine sea salt | 1/2 teaspoon (2.5 ml / 3 g) |
| freshly ground black pepper | 1/4 teaspoon (1.25 ml / 0.6 g) |
| unsalted butter for sautéingdivided | 2 tablespoons (30 ml / 28 g) |
| shallotvery finely chopped | 2 teaspoons (10 ml / 8 g) |
| dry white wine | 1/4 cup plus 1 teaspoon (65 ml / 65 g) |
| prepared glace de viandemelted | 1 tablespoon plus 1 teaspoon (20 ml / 25 g) |
| fresh lemon juice | 1/8 teaspoon (0.6 ml / 0.6 g) |
| cold unsalted buttercut into small pieces | 3 tablespoons plus 1 teaspoon (50 ml / 47 g) |
| flat-leaf parsleyfinely chopped | 1 teaspoon (5 ml / 1 g) |
Equipment Needed
- •12-inch (30 cm) heavy skillet
- •Small sharp knife or kitchen shears
- •Fine-mesh sieve and bowl
- •Warmed shallow serving bowl
Instructions
- 1
Trim the kidneys
Peel away any remaining outer membrane. Split each kidney lengthwise, then use a small sharp knife or kitchen shears to remove the firm white core and its branching tubes without carving away more flesh than necessary. Cut the halves crosswise into slices about 1/3 inch (8 mm) thick. Pat them very dry and keep them cold. Do not season yet, because salt draws moisture while they wait.
- 2
Set the station
Place a fine-mesh sieve over a bowl beside the stove and warm a shallow serving bowl. Measure the shallot, wine, melted glace de viande, lemon juice, cold butter, and parsley before heating the pan. The cooking moves too quickly for chopping halfway through, and the finished butter sauce waits for no one.
- 3
Sauté and drain
Heat half the sautéing butter in a wide skillet over medium-high heat until its foam subsides and it just begins to color. Season half the kidneys with half the salt and pepper, spread them in one uncrowded layer, and leave them untouched for about 45 seconds. Toss rapidly for another 60 to 90 seconds, just until the cut faces are browned and the centers are barely rosy, not raw. Transfer them immediately to the sieve. Repeat with the remaining sautéing butter, kidneys, salt, and pepper, then let all the pieces drain while you make the sauce.
If the pan fills with grey liquid, lift the kidneys out at once, pour away the liquid, wipe the pan, and reheat it before continuing in a smaller batch. Ça se rattrape. What you must not do is simmer the kidneys in their own juices. - 4
Reduce the wine
Lower the heat to medium. Add the shallot to the same pan and stir for 20 to 30 seconds, just until fragrant, without letting it brown. Pour in the white wine, scrape the browned fond from the pan floor, and boil briskly until the wine is reduced by half, about 2 minutes. Judge by volume rather than the clock: roughly 2 tablespoons should remain, concentrated but not dry.
- 5
Glaze the kidneys
Lower the heat and stir the melted glace de viande and lemon juice into the reduction. Return the drained kidneys without the liquid collected beneath them, then toss for 20 to 30 seconds, only until every piece is glazed and warmed. If the kidneys release more liquid, lift them out and reduce the sauce alone for a few seconds before returning them. Prolonged simmering toughens them.
- 6
Monter au beurre
Take the skillet completely off the heat. Add the cold butter a few pieces at a time, tossing and rolling the pan continuously until each addition disappears before the next goes in. The sauce should thicken into a glossy coating that clings to the kidneys, never an oily puddle. Do not let it boil after the butter is added.
If the sauce separates, remove the kidneys and put 1 teaspoon of cold water into a clean warm pan. Whisk in the broken sauce a spoonful at a time until it comes back together, then return the kidneys briefly. Ça se rattrape. - 7
Dish and serve
Taste the sauce and correct the salt only if necessary, remembering that glace de viande can carry plenty of its own. Spoon the kidneys and every drop of sauce into the warmed serving bowl, scatter the chopped parsley over the top, and serve immediately. À table!
Chef Tips
- •Fresh lamb kidneys should smell clean and faintly mineral, never sharply of ammonia. Buy them from a butcher with good turnover, and ask for them whole so you can see their condition before trimming.
- •The source simply asks for butter for the sauté, as a line cook would judge it by the pan. Two tablespoons is the measured home allowance, divided between two batches; it is enough to brown the kidneys without leaving them swimming.
- •Buy a refrigerated or frozen veal or beef glace with little added salt. It should be firm when cold and syrupy when warm. Ordinary stock is too thin, and a bouillon cube is too salty to stand in for it.
- •Choose a dry, unoaked white wine with clear acidity. The sauce reduces it hard, so sweetness and heavy oak only become louder. Pour the same wine at the table.
Advance Preparation
- •The kidneys may be trimmed and sliced up to 4 hours ahead. Arrange them over an absorbent towel in a covered container, refrigerate, and pat them dry again immediately before cooking.
- •The shallot and parsley can be chopped and the wine, glace de viande, lemon juice, and finishing butter measured earlier in the day. Keep the butter cold and warm the glace just before cooking.
- •Do not sauté the kidneys or mount the sauce ahead. Reheating toughens the kidneys and can split the butter emulsion; this is a dish to finish as people come to the table.
Frequently Asked Questions
Nutrition Information
1 serving (about 75g)
Calories
205 calories
Total Fat
17 g
Saturated Fat
10 g
Trans Fat
1 g
Unsaturated Fat
5 g
Cholesterol
250 mg
Sodium
500 mg
Total Carbohydrates
2 g
Dietary Fiber
0 g
Sugars
0 g
Protein
11 g
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