Mousse of Duck Liver with Aspic Jelly
Submitted by dsilver2
Duck liver mousse with port and cognac, set in a flavored aspic jelly base. A classic French masterchef pate, sliced and served on toasts as a refined first course.
YIELD
20 servingsPREP
20 minCOOK
2 hrsREADY
6 hrsThis is haute-cuisine territory: a true duck liver mousse finished with port-and-cognac aspic jelly, the kind of dish that belongs on a French restaurant tasting menu rather than a Tuesday dinner table. Plan for a half day in the kitchen and another two hours of chilling.
The homemade aspic is the structural and flavor foundation. Two hours of simmering beef bones with mirepoix, herbs, port, and cognac creates a rich, gelatinous broth that sets into a glassy, jewel-colored layer in the mold. The aspic does not just decorate the mousse, it carries the boozy, savory aromatics that define classic French charcuterie.
The mousse itself is built like a luxury pate. Duck livers cooked rare in butter with shallots and thyme, flamed with a full cup of port, then pureed with cream-soaked gelatin and finished with cognac, lemon juice, and cayenne. Straining the mixture through a sieve before molding is the step that separates restaurant-quality silky-smooth mousse from grainy home pate.
Served sliced on cold plates with crisp toasts, this is the kind of appetizer that signals a special occasion: holidays, anniversaries, or a deeply ambitious dinner party.
Pro Tips
- Cook duck livers only until rare. Overcooked liver turns grainy and tastes metallic, the residual heat in the puree finishes the cook.
- Flame the port carefully and only after pulling the pan from the heat. Stand back, the alcohol burns off in 30 to 45 seconds.
- Strain the puree through a fine-mesh sieve as written, twice if you want extra-silky texture. This catches any sinew or unblended bits.
- Serve at slightly cool room temperature, not refrigerator-cold. Cold dulls the rich, complex flavors of liver and aspic both.
Variations
- Substitute chicken livers for duck if duck is unavailable, the result is milder but the technique works the same way.
- Top each slice with a few capers, cornichons, and grainy Dijon for traditional French presentation.
- Use Madeira or sherry in place of port for a different alcohol note in the aspic and mousse.
Ingredients
Directions
Jelly:
Put the water, bones, beef, vegetables and spices in a pot and simmer for 2 hours. Skim the fat off the surface and strain the liquid. Stir in port and cognac.
Check the consistency of the aspic by pouring ½ ounce on a plate and refrigerating for 10 minutes. If the aspic is not hard enough, add 2 to 3 tablespoons of unflavored gelatin to the pot.
Mousse:
Soak the gelatin leaves in cold water. Cover the bottom of a pate mold with 1 cup of flavored aspic.
Put the mold in the refrigerator and let it sit until the aspic hardens, approximately 15 to 20 minutes.
In a large sauté pan, slowly cook the butter, thyme, and shallots for 2 minutes. Add the duck liver and cook until done rare. Add salt and pepper to taste.
Add 1 cup of the port wine, flame, and cook for another two minutes. Pour the mixture into the bowl of a food processor.
In a sauté pan, heat the cream over medium heat then drain the gelatin leaves and add them top the cream. Add the gelatin and cream to the liver mixture in the food processor. Purée the mixture for one minute.
Strain through a sieve into a large bowl. Whisk. Add ½ cup cognac, lemon juice, salt, pepper, and cayenne to taste. Mix thoroughly, place in the mold and cool for 2 hours in refrigerator.
Pour the remaining cup of flavored aspic over the top of the liver mixture in the mold. Return the mold to the refrigerator for 15 minutes until the aspic hardens. Unmold, slice, serve on cold plates with toasts.
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