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Mousse de Homard

Mousse de Homard

Created by Chef Juliette

Based on No. 956, Mousse de Homard, from Le Guide Culinaire (1907) by Auguste Escoffier

Mousse de Homard turns lobster, fish velouté, jelly, and barely whipped cream into a cold satin spread. Keep every element cold, and the sieve and ice bath do the difficult work.

Appetizers & Snacks
French
Dinner Party
Special Occasion
Make Ahead
45 min
Active Time
20 min cook5 hr 45 min total
YieldAbout 1¾ cups (420 ml), 6 appetizer servings

Mousse de Homard (cold lobster mousse) teaches that cold is not merely a serving temperature. It is structure. Lobster, fish velouté, jelly, and barely whipped cream must meet cold and remain cold, or the emulsion loosens and the mousse loses the silk that makes it magnificent.

The brigade formula assumed a saucier on staff, fish stock never off the fire for velouté and jelly, a mortar and drum sieve, and a cold pantry while the salamander handled hot dishes elsewhere. At home the salamander has no task, a food processor replaces the mortar, a fine-mesh sieve stays, and an ice bath replaces the cold marble station. The fine Mirepoix (No. 228), velouté, and jelly remain prepared components, just as the book intended; only the equipment and quantity have changed. One lobster replaces a banquet batch, while the original one-third-pint-per-pound proportions remain intact. One cook, one stove, one evening.

The separate hands and permanent stockpot were scaffolding. They can go. Pounding the lobster with velouté, forcing it through the sieve, adding the jelly before the cream, and keeping the bowl over ice are the dish itself. Before you touch the pan, prepare the ice bath and chill every component. That is the step that decides the mousse.

Mousse de homard belongs to the codified cold table of Parisian grande cuisine, supplied by lobsters arriving from the Atlantic coasts of Brittany and Normandy rather than rooted in one rural household tradition. It traveled from molded banquet entrée to the bourgeois hors d'oeuvre table, where smaller dishes could be prepared ahead and served with toast. The common misconception is that cream alone makes the mousse: its true structure comes from pounded lobster, fish velouté, the refining sieve, and just enough fish jelly to hold everything together.

The technique, the tradition, and the story behind every dish.

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Ingredients

whole raw lobster

Quantity

1, about 1½ pounds (680 g)

dispatched by the fishmonger immediately before cooking

prepared fine Mirepoix

Quantity

3 tablespoons (45 ml / 45 g) fine Mirepoix (No. 228)

dry white wine

Quantity

1½ cups (375 ml / 375 g)

Cognac or other good brandy

Quantity

3 tablespoons (45 ml / 43 g)

cold prepared fish velouté

Quantity

5 tablespoons (75 ml / 78 g), for about 6¼ ounces (180 g) picked lobster meat

prepared fish jelly

Quantity

2 tablespoons (30 ml / 30 g)

melted and cooled until liquid

very cold heavy cream

Quantity

5 tablespoons (75 ml / 75 g), for about 6¼ ounces (180 g) picked lobster meat

fine sea salt

Quantity

¼ teaspoon (1.25 ml / 1.5 g), plus more to taste

cayenne pepper

Quantity

1/16 teaspoon (0.3 ml / 0.1 g)

Equipment Needed

  • 4-quart (3.8 L) wide sauté pan with lid
  • 7-cup (1.7 L) food processor
  • 8-inch (20 cm) fine-mesh sieve
  • Large bowl and smaller nesting bowl for the ice bath
  • Flexible bowl scraper
  • Digital kitchen scale
  • One 1¾-cup (420 ml) serving crock or six 3-ounce (90 ml) ramekins

Instructions

  1. 1

    Prepare the cold station

    Fill a large bowl halfway with ice and add enough cold water to settle it. Nest a smaller mixing bowl securely inside. Chill the food-processor bowl and blade, the sieve, fish velouté, and cream. Melt the fish jelly gently, then let it cool until it remains fluid without carrying any warmth. Cold is structural here, so have this station ready before the lobster meets the pan.

  2. 2

    Cook the lobster

    Combine the fine Mirepoix (No. 228) and white wine in a wide lidded sauté pan and bring them to a brisk boil. Remove the pan from the heat, add the brandy, then return it to the burner and boil for 1 minute. This gives the effect of burnt brandy without lighting spirits in a home kitchen. Add the lobster, cover, and hold the liquor at a lively simmer for 12 to 14 minutes, turning the lobster once, until the shell is scarlet and the thickest tail meat reaches 145°F (63°C). Do not boil it furiously; hard boiling tightens the meat before it ever reaches the mortar.

    A dispatched raw lobster must be cooked at once. Ask the fishmonger to do this immediately before you leave, then keep it cold on the journey home.
  3. 3

    Cool in the liquor

    Transfer the lobster and its cooking liquor to a shallow metal bowl set over fresh ice. Turn the lobster occasionally so it cools in the aromatic liquor, exactly as the original formula directs. Once it is no longer warm, cover and refrigerate until thoroughly cold. Keep the total time outside refrigeration under 2 hours.

  4. 4

    Pick and weigh meat

    Split the cold lobster lengthwise. Remove the tail, claw, and knuckle meat, discarding the stomach sac, intestinal vein, and feathery gills. Pat the meat dry and weigh it. The listed quantities expect about 6¼ ounces (180 g); for a different yield, use 0.42 ml each of fish velouté and unwhipped cream for every gram of lobster meat. This preserves the book's ratio of one-third Imperial pint of each per pound of meat.

    Measure from the weight of picked meat, not the weight of the whole lobster. Shells vary, but the proportion that gives the mousse its body does not.
  5. 5

    Pound with velouté

    Cut the lobster meat into small pieces and pulse it in the chilled processor until finely minced. Add the cold fish velouté in four additions, pulsing briefly and scraping down the bowl after each, until the mixture becomes a close, smooth paste. A processor works faster than the mortar, which is why it can also warm the lobster faster. If the bowl loses its refrigerator chill or the paste begins to look oily, stop and set it over ice until it tightens again, then continue.

  6. 6

    Sieve over ice

    Press the lobster paste through the chilled fine-mesh sieve with a firm flexible scraper, collecting the purée in the bowl nested over ice. Scrape every bit of smooth purée from the underside and leave the stringy fibers behind. The sieve is not brigade ceremony. It is the technique that turns pounded lobster into silk. Stir the purée over ice for 3 to 4 minutes, until it feels thoroughly cold and looks close and glossy.

  7. 7

    Work in the jelly

    While stirring steadily, drizzle the melted, cold fish jelly into the lobster purée in a thin stream. It must be liquid but not warm. If it catches into translucent threads, the mixture is too cold; lift the bowl from the ice and set it over barely warm water for a few seconds, stirring until smooth. If the purée turns shiny and greasy, it has warmed too far; return it to the ice and whisk in a teaspoon of very cold fish velouté. Ça se rattrape.

  8. 8

    Fold the cream

    Whip the cold cream only until it thickens and falls from the whisk in soft folds. It should not stand in peaks. Fold it into the lobster mixture in three additions, turning the bowl and lifting from beneath so the cream lightens the mousse without becoming grainy. Season with the salt and cayenne, then taste from a cold spoon. The cayenne should warm the flavor quietly, never announce itself.

  9. 9

    Chill until set

    Spoon the mousse into one chilled 1¾-cup serving crock or six small ramekins, working promptly before the jelly begins to set. Smooth the surface with the back of a spoon, cover, and refrigerate for at least 4 hours, preferably overnight. Bring it from the cold 5 minutes before serving so it spreads without losing its structure. Set down thin toast and small knives, then let everyone help themselves. À table!

Chef Tips

  • Prepared fish velouté should be cold, smooth, and just thick enough to coat a spoon. A heavy or floury velouté makes the mousse pasty, while a thin one cannot support the cream.
  • The fish jelly should taste cleanly of fish stock and set tenderly, not bounce. Melt it over gentle heat and cool it while it is still liquid; warm jelly loosens the emulsion, and fully set jelly leaves threads through the mousse.
  • Do not replace the whole raw lobster with packaged cooked meat if you want this specific preparation. Cooking and cooling the lobster in fine Mirepoix (No. 228), white wine, and brandy is part of the flavor, not brigade scaffolding.
  • Serve the mousse with thin, crisp brioche or baguette toast. Pour the same dry white wine used in the pan, well chilled, and leave the plate otherwise alone.
  • Keep the finished mousse covered and refrigerated, and eat it within 2 days. Freezing damages both the cream and jelly structure.

Advance Preparation

  • Prepare the fine Mirepoix (No. 228), fish velouté, and fish jelly up to 2 days ahead. Chill them separately and keep the jelly set until you are ready to melt and cool it.
  • The lobster can be cooked and cooled in its liquor several hours before the mousse is mixed. Keep it covered and refrigerated once cold.
  • Make the finished mousse the day before the dinner. An overnight rest gives the jelly time to set evenly and leaves only toast and serving to handle when guests arrive.

Frequently Asked Questions

Nutrition Information

1 serving (about 65g)

Calories
90 calories
Total Fat
6 g
Saturated Fat
3 g
Trans Fat
0 g
Unsaturated Fat
2 g
Cholesterol
60 mg
Sodium
320 mg
Total Carbohydrates
2 g
Dietary Fiber
0 g
Sugars
1 g
Protein
7 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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