Salmon & Sole with Hazelnut, Lemon, & Piment d’Esplette Crust with Cherry-Caper Verjus Sauce

Roland Passot
Maitre Cuisinier de France
Founder, La Folie, San Francisco
Co-founder, Left Bank Brasserie, Larkspur/Menlo Park/San Jose, CA
SERVES 4
INGREDIENTS
FISH:
3 pieces center-cut salmon, about 3 ounces each
6 pieces sole fillet, each about the same size as the salmon (3 ounces each)
CRUST:
- 7 tablespoons (1 stick minus 1 tbsp) unsalted butter, softened (about 3.5 ounces)
- ¾ cup hazelnuts, coarsely chopped (about 3.5 ounces)
- 1 tablespoon Meyer lemon zest (from 2 lemons)
- 3 tablespoons fresh lemon juice
- 1 tablespoon piment d’Espelette (or substitute mild chili powder)
- 1 cup panko breadcrumbs
- Salt, to taste
CHERRY-CAPER VERJUS SAUCE:
- 1 cup fresh cherries, pitted and quartered (about 4.5 oz)
- ½ cup unsalted butter (1 stick or 4 oz)
- ¼ cup toasted hazelnuts, chopped (about 1 oz)
- Juice of 1 lemon (about 2 tablespoons)
- 1 tablespoon capers
½ cup verjus (or substitute red wine vinegar, slightly diluted with water if strong)
- 2 tablespoons chopped fresh parsley
METHOD
- 1
Assemble the Fish:
- Trim salmon into 3 evenly sized pieces, about 1 inch wide and 2½ inches long.
- Place one sole fillet underneath each piece of salmon, and top with a second sole fillet, sandwiching the salmon in the center.
- 2
Make Hazelnut Compound Butter (Crust):
- In a bowl, mix softened butter, chopped hazelnuts, lemon zest, lemon juice, piment d’Espelette, panko, and a pinch of salt to form a coarse, spreadable paste.
- 3
Form the Crust:
- Spread about ¼ cup of the mixture between two sheets of parchment paper.
- Roll or press into a sheet about ¼ inch thick, sized to cover the top of each fish portion.
- Cut crust to match fish portions and place on top of each sole-salmon sandwich.
- Chill in the refrigerator for at least 30 minutes to firm up.
- 4
Cook the Fish:
- Preheat oven to 350°F.
- Place fish on a parchment-lined baking sheet and bake for 6 minutes.
- Switch to broil and cook for 2 minutes, or until the crust is golden brown. Watch carefully to prevent burning.
- 5
Make the Sauce:
- In a saucepan over medium heat, melt butter and cook until it turns nutty brown (beurre noisette), about 3–4 minutes.
- Add cherries and chopped hazelnuts. Sauté for 2 minutes.
- Stir in capers and verjus. Let simmer for 3–4 minutes, reducing slightly.
- Add lemon juice and parsley. Stir to finish.
- 6
To Serve:
- Let the fish rest briefly after broiling.
- Plate 3 fish portions per plate, spaced about 1 inch apart.
- Optional: Arrange steamed asparagus in between the fish.
- Spoon the warm cherry-caper sauce over and around the fish.