Mother sauces
Choron
Choron is a classical French derivative of hollandaise in which tomato paste or purée is incorporated into the emulsion to give a brick‑red color, bright acidity, and subtle sweetness that reads as distinctly savory rather than sweet. It is béarnaise with the herbs and shallot‑vinegar reduction replaced entirely by tomato. The sauce holds the hollandaise structure — a warm, loose oil‑in‑water emulsion of egg yolk and melted butter — but the tomato element introduces pectin, additional acidity, and lycopene, which deepens both the flavor and the color without destabilizing the emulsion when added correctly.
The formula
250 g clarified butter : 100 g egg yolk (2.5 : 1) : 25–30 g tomato paste
Classic Escoffier proportion. Butter weight is always measured against yolks, never volume. Tomato paste added after the emulsion is fully formed and the sauce has cooled slightly from cooking temperature (~65–68 °C). The reduction stage (wine‑vinegar + water) uses roughly equal parts liquid, reduced by half before being strained into the yolks.
Identity
- An authenticated hollandaise emulsion — yolk proteins coagulate around fat droplets, forming a stable suspension.
- Tomato paste folded in after emulsion is complete — never cooked with the yolks or the sauce will break.
- No tarragon, chervil, shallot, or peppercorn — those define béarnaise; their absence defines choron.
- Service temperature: 60–65 °C — warm enough to be fluid, cool enough not to cook further.
- Made from clarified butter — whole butter introduces water and milk solids that weaken the emulsion.
Ingredients
| Base | Clarified butter, warm (75–80 °C) | Whole butter introduces ~18% water and milk solids. Clarified butter is anhydrous and gives a clean, stable fat phase. Weight is the only reliable measure. |
| Binder | Egg yolks, large (50–55 g each in shell) | The sole emulsifier. Yolks must be fresh and cold going in; they emulsify as they cook. 4 large yolks ≈ 200 g. |
| Acid | White wine vinegar or white wine | Provides the sharp, clean acidity that balances the tomato and butter. Reduced by half with an equal weight of water before being added to yolks. |
| Flavor | Tomato paste (doble‑concentrated, 28–30 °Brix) | Added off‑heat after the emulsion is formed and resting at ~65 °C. Provides acidity, umami, color, and body. Fresh tomato concassé may be folded in as garnish, not as the base agent. |
| Seasoning | Fine salt | Added in two phases: first to reduction liquid, second to finished sauce to season the emulsion itself. |
| Seasoning | Cayenne pepper or white pepper | Trace amount (pinch) to lift the tomato acidity and add a barely perceptible heat. Not a dominant element. |
| Liquid | Cold water (for reduction base) | Equal parts vinegar and water, reduced by half. The water buffers the acid so yolks cook evenly rather than curdling. |
Method
- 1Combine white wine vinegar (or white wine), an equal weight of cold water, and a pinch of salt in a small saucepan. Bring to a boil, reduce heat, and simmer until the liquid is reduced by half. Strain through a fine sieve and hold warm.The reduction concentrates the vinegar's acidity and kills surface microbes; the water content buffers the acid so yolks cook gradually rather than scramble. The strained liquid is the only liquid that enters the yolks.
- 2Place the egg yolks in a stainless steel bowl. Add the warm reduction liquid and whisk to combine. Set the bowl over a barely simmering bain‑marie (water should not touch the bowl's base).Bain‑marie cooking (double‑boiler method) provides gentle, even heat that raises the yolk temperature to ~65–68 °C — enough to thicken proteins and coagulate them around fat droplets, but not enough to scramble them.
- 3Whisk continuously and briskly. As the yolks thicken and pale (ribbon stage, roughly triple in volume, ~4–6 minutes), the emulsion forms as the proteins unfold and encapsulate the butter droplets. The sauce is ready when it coats the back of a spoon with a clean trail drawn through it.Continuous whisking distributes heat evenly and mechanically incorporates air, which helps proteins unfold and form a stable three‑dimensional network. The triple‑volume ribbon is the reliable visual cue that the proteins have denatured sufficiently to hold an emulsion.
- 4Remove the bowl from the heat. Pour the warm clarified butter in a thin, steady stream directly onto the whisking yolks, starting drop by drop and building to a thin pour. Maintain vigorous whisking throughout.Butter must be warm enough to stay liquid but not so hot it overcooks the already‑gelled proteins. A thin stream ensures each droplet of fat is immediately coated by protein before it can coalesce — this is the mechanical core of emulsion formation.
- 5Whisk in the tomato paste gradually, ensuring it fully incorporates before adding more. Season with salt and a pinch of cayenne. If fresh tomato concassé is used, fold it in as a garnish just before service.Tomato paste added too quickly or at too high a temperature can destabilize a warm hollandaise. Folding it in after the emulsion is complete avoids shocking the protein network. Salt tightens the emulsion; cayenne lifts the tomato acidity.
- 6Pass the finished sauce through a fine conical strainer (chinois) into a clean, warm vessel. Hold at 60–65 °C in a bain‑marie or warm spot. Use within 20–30 minutes.Straining removes any bits of cooked egg white or herb fragments. Temperature control prevents the sauce from cooling into a solid or reheating to the point of breaking.
Techniques that matter
Bain‑marie emulsification
Provides controlled, indirect heat (never above 100 °C at the water surface) that thickens yolk proteins without scrambling them. This is the only reliable stovetop method for hollandaise‑type sauces.
Controlled fat‑integration rate
The thin‑stream technique is not aesthetic — it is structural. Pouring too fast causes fat droplets to coalesce before protein encapsulation occurs, and the emulsion collapses irreversibly.
Strain immediately after emulsification
Any cooked‑protein bits remaining act as nucleation points for fat coalescence and eventual sauce breaking. A chinois removes them cleanly.
Variations & derivatives
Choron with fresh tomatoFrance
Fresh vine tomatoes, peeled, seeded, and concassé, are folded into finished choron for texture and visual appeal alongside the tomato paste base.
Choron à la provençaleFrance
Garlic and shallot are briefly softened in butter and incorporated with the tomato, giving a more pronounced vegetable character.
Choron noisetteFrance
Brown butter (beurre noisette) replaces clarified butter, giving a nuttier, deeper toffeed flavor that complements the tomato acidity. Requires extra care as the milk solids in noisette can destabilize the emulsion slightly.
Sauce bigarade (related)France
Hollandaise finished with bitter orange juice and zest rather than tomato — a sister variation demonstrating how the hollandaise template accepts a wide range of acid/aroma agents.
Used in these dishes
Substitutions
- Clarified butter → Whole butter, thoroughly melted and settled — Partially acceptable in an emergency. The milk solids and water content (18%) increase the risk of breaking; the sauce must be used immediately. Do not attempt if the emulsion already shows signs of instability.changes result
- Tomato paste → Good‑quality tomato purée, reduced by half over low heat — Aromatic and workable. Reduce the purée to a paste consistency (approx. 12–15% moisture) before incorporating. Gives a slightly less intense, more rounded tomato flavor.
- White wine vinegar → Champagne vinegar or dry white wine — Both provide clean acidity. Champagne vinegar is preferable for its finesse; dry white wine requires a longer reduction to concentrate flavors. Either must still be reduced with water by half.
- Egg yolk emulsion → Beurre blanc (reduced wine‑vinegar + shallots emulsified with cold whole butter) — Completely different sauce category — beurre blanc is a butter‑based emulsion without egg, lighter and more acidic. It can be finished with tomato but lacks the richness and structure of choron.changes result
Troubleshooting
Sauce breaks (fat separates into pools) during or after butter incorporation
Butter poured too quickly before protein encapsulation; butter too hot (>85 °C) shocking already‑coagulated proteins; temperature drop during incorporation causing fat to solidify → If caught early: transfer broken sauce to a clean bowl, add a fresh yolk (or 15 g of warm water) and whisk vigorously, then slowly reincorporate the broken sauce as you would new butter. If fully broken: start over with a fresh yolk as nucleus, add broken sauce drop by drop as if adding butter.
Sauce curdles (grains of scrambled yolk visible) during cooking stage
Heat source too high; bowl left directly on the stovetop; whisk stopped mid‑cook; yolks starting too cold with too much liquid, causing prolonged cooking before thickening → Once curdled, the emulsion cannot be rescued. The only recovery is to strain out the curds and use the liquid as an enricher for a beurre blanc or a soup base. Prevention is the only cure: use a proper bain‑marie, never stop whisking, and keep yolks moving from the first moment of heat contact.
Tomato paste sinks or streaks rather than incorporating smoothly
Tomato paste added to a sauce that is too cool (below 60 °C) and has begun to set; paste added too quickly in one mass → Fold in tomato paste gradually, off‑heat, with the sauce still warm and fluid (~65 °C). If streaks persist, pass the sauce through a fine strainer while warm; the mechanical action of pressing through the mesh distributes the paste more evenly.
Sauce turns grayish or loses vibrancy over 30 minutes of holding
Over‑reduction of tomato paste prior to incorporation (caramelization tips toward bitterness and darkening); hollandaise base cooked too long before tomato addition → Use fresh tomato paste opened that day; incorporate it no more than 20 minutes before service. Holding choron at correct temperature (60–65 °C) in a covered bain‑marie will slow color degradation, but the sauce is always best fresh.