Pan-Seared White Fish with Chanterelle Vinaigrette, Fingerlings & Chard
Ingredients
- 3/4 lb fingerling potatoes, sliced 1/8 inch thick on a mandoline
- Kosher salt
- 6 tablespoons rice oil or other neutral-flavored oil
- 1 lb small chanterelle mushrooms, cleaned, stem ends trimmed and halved lengthwise
- 1 cup brunoise-cut shallots (1/8-inch dice)
- 1/4 cup Banyuls vinegar or red wine vinegar
- 1/2 cup extra-virgin olive oil
- 2 tablespoons chopped fresh flat-leaf parsley
- Freshly ground black pepper
- 8 leaves rainbow chard
- 4 (1/4-lb) center-cut ono (wahoo) fillets (or similar white fish)
- 1 1/2 tablespoons unsalted butter
- 8 fresh thyme sprigs
Preparation
To Cook the Potatoes:
In a pot, combine the potatoes, 2 tablespoons salt, and water to cover by 2 inches and bring just to a boil over high heat. Reduce the heat to a slow simmer and cook for 8 to 10 minutes, until the potatoes are fork-tender. Do not let the potatoes boil or they might fall apart. Line a large plate with paper towels. When the potatoes are ready, drain well, then arrange in a single layer on the towel-lined plate.
To Make the Chanterelle Vinaigrette
In a 12-inch sauté pan, heat 2 tablespoons of the rice oil over medium-high heat. When the oil is hot, add the mushrooms and a pinch of salt and cook, stirring occasionally, for 4 minutes, until soft and lightly caramelized. Transfer to a bowl.
Return the pan to low heat and add 2 tablespoons of the rice oil. Add the shallots and a small pinch of salt and sweat the shallots for about 3 minutes, until translucent. Transfer the shallots to the bowl with the chanterelles. Add the vinegar, olive oil, and parsley and stir to mix, then season with 2 teaspoons salt and pepper to taste. Set the vinaigrette aside.
To Blanch the Chard:
In a medium pot, bring 2 qt water to a boil over high heat and add 1 tablespoon salt. Fill a large bowl with water and ice. While the water heats, trim off the chard stems, then cut the chard leaves in half lengthwise through the central rib. Cut each half crosswise into 2-inch-wide pieces. Add the chard to the boiling water and blanch for 45 seconds. Drain immediately, then plunge into the ice bath to halt the cooking. When cold, remove from the ice water and spread on paper towels to dry.
To Sear the Ono:
Pat the fish dry with a paper towel and season with 1 1/2 teaspoons salt. In a 12-inch cast-iron skillet, heat the remaining 2 tablespoons of rice oil over medium-high heat until it begins to smoke. Place the fish in the pan, carefully laying each piece away from you to avoid splashing the oil. Cook for 3 to 4 minutes, until browned on the underside. Transfer the fish to a plate and drain off the oil from the pan. Immediately return the heat to medium-low. Cook for 1 minute, until the butter is lightly browned. Tilt the pan over the burner so the butter pools on one side, then use a metal tablespoon to baste each piece of fish four times with browned butter and thyme. This should take about 2 minutes longer of cooking time. The fish should be just cooked through and moist in the center and an instant-read thermometer inserted into the center of a piece should register 145°F.
To Assemble and Serve:
Transfer the fish to a plate and discard the butter and thyme. Add the potatoes and chard to the pan and warm over medium heat for 1 minute. Divide the potatoes and chard among four plates. Top each portion with a piece of fish and any warm juices, then spoon the chanterelle vinaigrette over the top, stirring it each time before saucing.Â