Active Time
30 MIN
Total Time
8 HR 40 MIN
Yield
Serves : Makes about 1 1/4 cup

Thanks to its luscious blend of chicken livers and fat blended with heavy cream, traditional chicken liver mousse is delicious but not kosher-friendly. This Passover-ready recipe solves the problem by caramelizing onions in schmaltz for a creamy texture and layers of rich flavor. If you can’t source high-quality schmaltz in your area, you can make it yourself. Coarsely chop 12 ounces of chicken skins, and place in a medium skillet with 2 tablespoons of water. Cook over low, turning skins occasionally, until the skins are crispy and golden brown. Pour through a fine wire-mesh strainer, and use in recipe as directed.

How to Make It

Step 1    

Heat 2 tablespoons melted schmaltz in a large skillet over high until very hot, about 3 minutes. Add livers; sprinkle with salt and pepper. Cook until lightly browned and medium-rare, 1 to 2 minutes per side. Transfer to a plate. Reduce heat to medium. Add onions and 1 tablespoon schmaltz, and stir to coat onions in schmaltz. Cook, stirring occasionally, until onions are caramelized, 15 to 20 minutes. (If onions start to brown too quickly, reduce heat to low.) Stir in rosemary and lemon zest, and cook, stirring constantly, until fragrant, about 30 seconds. Remove from heat, and stir in brandy and sugar, scraping to loosen browned bits from bottom of skillet. Return skillet to heat over medium, and cook 1 minute.

Step 2    

Place onion mixture, livers (do not include any accumulated juices from livers), and egg yolks in a blender; process on high speed until smooth, about 30 seconds, stopping to scrape down sides as needed. With blender running on medium speed, add remaining 1/3 cup schmaltz in a slow, steady stream, processing until completely blended, about 40 seconds. Push liver mixture through a fine wire-mesh strainer into an airtight container; discard solids. (Mousse should be very smooth.) Press plastic wrap directly onto surface. Chill until firm, at least 8 hours or up to 12 hours. Let mousse stand at room temperature 15 minutes before serving. Sprinkle with flaky sea salt, and serve with toasted challah.

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