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Noisette Sauce

Noisette Sauce

Created by Chef Juliette

Sauce Noisette turns tepid Hollandaise with a last-minute ribbon of beurre noisette, giving salmon, trout, and poached fish a deep butter fragrance without disturbing the emulsion.

Sauces & Condiments
French
Dinner Party
Special Occasion
5 min
Active Time
8 min cook20 min total
YieldAbout 2 quarts

Sauce Noisette (Hollandaise finished with butter cooked to hazelnut color) teaches a delicate lesson in the sauce family: beurre noisette can join a yolk-and-butter emulsion only when their temperatures agree. The finished sauce should be glossy and spoonable, with the soft acidity of Hollandaise underneath and the toasted fragrance of butter arriving last. The one true thing before you touch a pan is this: pan-hot butter poured into the emulsion will break it. Let both become tepid.

The original entry assumed a saucier with Hollandaise ready by the quart in a tepid corner of the range, a tammy at hand, and service calling for the sauce at once. The brigade could multiply that quart formula pan after pan; this home version stops at one large bowl and preserves the exact proportion of two ounces of finished beurre noisette for each quart of Hollandaise Sauce (No. 30). A heatproof bowl over barely warm water replaces the guarded corner of the range. The finished base has already been strained, so a second pass through the tammy is scaffolding and can go; keeping the sauce tepid and adding the beurre noisette at the last moment are the dish itself. One cook, one stove, one evening.

Have the salmon, trout, or poached fish ready before you finish. Sauce Noisette does not wait over a flame, and reheating is where confidence turns to scrambled yolk. The decisive step is to cool the beurre noisette until warm rather than hot, then whisk it into the equally tepid Hollandaise in a fine thread.

Sauce Noisette belongs to the French classical fish table rather than to one regional larder, a Hollandaise derivative sent out with salmon, trout, and fish cooked gently in liquid. Its noisette is not ground hazelnut but beurre noisette, butter taken to the color and aroma of a hazelnut. The sauce traveled readily from grand dining rooms to bourgeois homes because its distinction lies in a last-minute finish, not a separate stock or a day of reduction.

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Ingredients

Hollandaise Sauce

Quantity

8 cups (1.9 L / approximately 1.7 kg) Hollandaise Sauce (No. 30)

freshly made and held tepid

unsalted butter

Quantity

10 tablespoons (150 ml / 142 g)

to yield about 1/2 cup (120 ml / 113 g) finished beurre noisette

Equipment Needed

  • 20 cm pale stainless-steel skillet
  • 3 L heatproof mixing bowl
  • Wide saucepan for the bain-marie
  • Balloon whisk
  • Heatproof measuring jug
  • Digital scale
  • Instant-read thermometer
  • Warm sauceboat

Instructions

  1. 1

    Set a tepid bath

    Heat 1 inch of water in a wide saucepan to about 45°C (113°F), then take it completely off the heat. Place 7 1/2 cups of freshly made Hollandaise Sauce (No. 30) in a large heatproof bowl and reserve the remaining 1/2 cup separately for the finish or a rescue. Set both over the warm water without letting their bowls touch it, stirring gently until the sauce registers 38 to 43°C (100 to 110°F). If it grows warmer, lift it away at once. Direct heat has no business here.

    The water bath is a tepid resting place, not a working burner. Once the water is warm, move the saucepan off the heat before the Hollandaise goes anywhere near it.
  2. 2

    Make the beurre noisette

    Melt the unsalted butter in a pale 20 cm skillet over medium heat. It will foam loudly as its water cooks away, then quieten; swirl the pan often and watch the milk solids beneath the foam. When those flecks turn the deep gold-brown of a hazelnut and the butter smells toasted, immediately pour it, browned flecks and all, into a heatproof jug. Measure or weigh 1/2 cup (120 ml / 113 g) for the sauce. If the pan races toward black, pull it off the heat and keep swirling; butter that smells sharp or burnt must be made again.

    A pale stainless-steel pan lets you see the milk solids change color. A dark pan asks you to judge by faith, and butter moves too quickly for faith.
  3. 3

    Cool the butter

    Let the measured beurre noisette cool to 40 to 43°C (104 to 110°F), swirling it once or twice so the temperature evens out. It should feel distinctly warm, never pan-hot. This is the step that decides the sauce: butter that is too hot cooks the yolks and collapses the emulsion, while butter allowed to set cannot be whisked in smoothly.

  4. 4

    Finish the emulsion

    Whisk the tepid Hollandaise once until smooth. Add the measured beurre noisette a spoonful at a time at first, whisking each addition fully into the sauce, then continue in a fine steady thread. The Sauce Noisette should remain thick, glossy, and completely free of oily beads. If it separates, stop pouring. Ça se rattrape: place 2 tablespoons of the reserved Hollandaise Sauce (No. 30) in a clean bowl, whisk in the split sauce one teaspoon at a time until the emulsion returns, then incorporate the rest slowly. Whisk in any unused reserved Hollandaise at the end.

  5. 5

    Serve without delay

    Transfer the Sauce Noisette to a warm, never hot, sauceboat. It should nap the back of a spoon and fall from it in a broad glossy ribbon; if it is too firm, whisk in tepid water one teaspoon at a time. Taste before adjusting anything, because the finished base already carries its salt, acidity, and pepper. Spoon the sauce immediately over salmon, trout, or other gently boiled or poached fish. Never return it to direct heat. À table!

Chef Tips

  • Despite its name, Sauce Noisette contains no hazelnuts. Noisette describes the color and toasted aroma reached by the butter; nut paste or hazelnut oil would make another sauce entirely.
  • Use unsalted butter and a pale pan. Salted butter clouds the seasoning already established in the Hollandaise, while dark cookware hides the milk solids at the precise moment their color matters.
  • For a smaller table, keep the book's ratio exact: use 2 ounces (60 ml / 57 g) of finished beurre noisette for every 1 quart (950 ml / approximately 850 g) of Hollandaise Sauce (No. 30). Reduce the quantity, never the technique.
  • Salmon and trout carry this generous sauce particularly well. Pour a dry white with enough acidity to meet the butter, such as Chablis, Sancerre, or a restrained white Burgundy.

Advance Preparation

  • Prepare the Hollandaise Sauce (No. 30) shortly before service and hold it in the off-heat tepid bath for no more than 30 minutes. Do not chill and reheat it for this derivative.
  • The beurre noisette may be cooked up to 6 hours ahead, covered, and held at room temperature. Warm it gently to 40 to 43°C (104 to 110°F) before using, but keep the final addition for the last moment.
  • Finished Sauce Noisette does not improve by waiting and should not be reheated. Arrange the fish, sauceboat, and serving spoon before combining the two butter preparations.

Frequently Asked Questions

Nutrition Information

1 serving (about 57g)

Calories
300 calories
Total Fat
32 g
Saturated Fat
19 g
Trans Fat
1 g
Unsaturated Fat
12 g
Cholesterol
100 mg
Sodium
180 mg
Total Carbohydrates
1 g
Dietary Fiber
0 g
Sugars
1 g
Protein
2 g

Note: Chef personas and recipes are created with AI assistance. Cook with care: follow safe food-handling practices, check doneness with a thermometer when needed, and adapt for allergies and your kitchen.

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