Ingredients
Method
- Melt the measured skillet butter listed above in a large stainless-steel or enameled cast-iron skillet over medium heat.
- Add the livers and chopped onion. Cook, stirring occasionally, for about 10 minutes. The onion should soften and the liver edges should brown, but the livers should not become dry.

- Add the dry white wine, garlic, mustard, rosemary, and lemon juice. Bring to a simmer and cook uncovered for about 10 minutes, stirring occasionally, until no pool of liquid remains.
- Check the center of the largest liver with a food thermometer. It must reach 165°F before blending. If needed, continue cooking, checking again until it does.
- Remove the skillet from the heat and let the liver mixture cool for 20 minutes.
- Transfer the warm mixture to a food processor. Add the separate measured blending butter and cultured crème fraîche listed above. Process until smooth, scraping down the bowl as needed.
- Add mineral salt to taste and pulse to distribute it. Spoon the pâté into a crock or mold, cover, and refrigerate for at least 4 to 5 hours before serving.
Notes
Original yield: 8 servings. Prep: 15 minutes. Cook: about 20 minutes, or until the largest liver reaches 165°F. Cool for 20 minutes, then chill for at least 4 to 5 hours. Total before chilling is about 55 minutes. Minimum total time: about 4 hours 55 minutes using the four-hour minimum chill; allow longer as needed.
Wine: original batch 2/3 cup; double batch exactly 1 1/3 cups.