Petrale Sole with Lemon-Caper Butter, String Bean Almondine, and Roasted Sweet Potato Fries

Lightly Pan-Seared Petrale Sole

A brief sear in ghee gives thin sole fillets a little color without a heavy crust, leaving their delicate flavor ready for the lemon butter.

Ingredients

• 1½ lb petrale sole fillets, pin bones removed
• 2 tbsp ghee
• ½ tsp kosher salt, plus more to taste
• ¼ tsp freshly ground black pepper

Instructions

1. Pat the fillets thoroughly dry and season just before cooking with salt and pepper.
2. Heat a wide nonstick or well-seasoned skillet over medium-high heat. Add half the ghee and enough fillets to fit without crowding.
3. Sear for 1½–2½ minutes on the first side, until lightly golden and releasing readily. Turn carefully with a fish spatula and cook another 30 seconds–2 minutes, depending on thickness.
4. Remove when the thickest part reaches 145°F and the flesh is opaque and separates easily. Transfer to warm plates and repeat with the remaining ghee and fish.

Notes

• Thin fillets cook very quickly; avoid holding them in a hot oven while finishing the sides.

Lemon-Caper Butter Sauce with Scallions and Parsley

Cold butter emulsifies into a little lemony liquid for a glossy sauce, while capers and fresh herbs cut through the richness.

Ingredients

• 3 tbsp brined capers, drained and briefly rinsed
• 2 scallions, thinly sliced, whites and greens separated
• 2 tbsp fresh lemon juice, plus more to taste
• 3 tbsp water
• 6 tbsp cold unsalted butter, cut into cubes
• 2 tbsp finely chopped flat-leaf parsley
• to taste kosher salt and freshly ground black pepper

Instructions

1. Combine the capers, scallion whites, lemon juice, and water in a small saucepan. Simmer for 1–2 minutes to soften the scallions slightly.
2. Reduce the heat to very low. Whisk in the cold butter a few cubes at a time, adding more as each addition becomes creamy. Keep the sauce warm but do not let it boil.
3. Stir in the scallion greens and parsley just before serving. Taste before adding salt, then adjust with pepper and a little more lemon juice if needed.
4. Spoon over the sole immediately.

Notes

• If the sauce becomes oily or too thick, remove it from the heat and whisk in cool water one teaspoon at a time.

String Bean Almondine

Blanching keeps the beans bright and crisp-tender. Toasted almonds, a small butter finish, and lemon provide richness, crunch, and lift.

Ingredients

• 1¼ lb string beans, stem ends trimmed
• ⅓ cup sliced almonds
• 1 tbsp ghee
• 1 tbsp unsalted butter
• 2 tsp fresh lemon juice
• 1 tbsp chopped flat-leaf parsley
• to taste kosher salt and freshly ground black pepper

Instructions

1. Toast the almonds in a dry wide skillet over medium-low heat for 3–5 minutes, tossing frequently, until golden and fragrant. Transfer to a plate.
2. Bring a pot of generously salted water to a boil. Add the beans and cook for 3–5 minutes, until bright green and just tender with a little bite. Drain thoroughly; if preparing ahead, chill in ice water, drain, and dry.
3. Heat the ghee in the skillet over medium-high heat. Add the dry beans and toss for 2–3 minutes, until hot.
4. Lower the heat and add the butter. Toss until melted, then remove from the heat and add the lemon juice, parsley, and most of the almonds. Season to taste and scatter the remaining almonds over the top.

Roasted Sweet Potato Fries

Evenly cut batons and uncrowded pans encourage browned edges while keeping the sweet potato centers tender.

Ingredients

• 2 lb orange-fleshed sweet potatoes, scrubbed, skin left on
• 2 tbsp olive oil
• ¾ tsp kosher salt
• ¼ tsp freshly ground black pepper
• to finish flaky sea salt

Instructions

1. Heat the oven to 425°F with racks in the upper and lower thirds.
2. Cut the sweet potatoes into long batons about ⅜ inch thick. Dry well, then toss with olive oil, kosher salt, and pepper.
3. Spread across two rimmed sheet pans in a single layer with space between pieces.
4. Roast for 30–40 minutes, turning the fries and rotating the pans after about 20 minutes, until tender inside with deeply browned edges. Remove thinner pieces early if necessary.
5. Finish with a small pinch of flaky salt and serve promptly.

Notes

• These are roasted fries with tender centers, not uniformly crisp deep-fried fries. Crowding the pans will make them steam.

Overall Timing / Workflow

The sweet potatoes take the longest; cooking the sole last ensures it reaches the table moist and hot.

Instructions

1. 0:00 — Heat the oven, cut the sweet potatoes, and put them in to roast as soon as the oven is ready.
2. 0:10 — Trim the beans, toast the almonds, and prepare the lemon, capers, scallions, parsley, and cubed butter.
3. 0:20 — Turn the fries as needed. Blanch and drain the beans, and pat the fish dry.
4. During the final 10–12 minutes of roasting, cook the sole in batches while reheating the beans in a second skillet.
5. Make the butter sauce during the last batch of fish. Finish the beans, check the fries, and plate immediately.

Plating

Keeping the three elements side by side preserves the fries' roasted edges and lets the sauce stay focused on the fish.

Instructions

1. Arrange the sole down the center of each warm plate, overlapping smaller fillets if needed.
2. Place a generous bundle of beans on one side and a loose stack of sweet potato fries on the other.
3. Spoon the lemon-caper butter along the fish, distributing the capers and herbs evenly. Keep most of the sauce off the fries.

Leftover Path

Separate storage allows gentle reheating for the fish and higher heat for the sweet potatoes.

Instructions

1. Refrigerate leftovers within 2 hours in separate covered containers. Eat the fish and sauce within 2 days; use the beans and sweet potatoes within 3–4 days.
2. Reheat the sweet potatoes in a 425°F oven for 10–15 minutes. Warm the beans briefly in a skillet.
3. Warm the fish covered over low heat with a splash of water until it reaches 165°F, avoiding prolonged cooking. Warm the sauce separately over very low heat and whisk in a little water if it separates.
4. Alternatively, flake the cold fish over a lemon-dressed green salad with chopped beans and almonds, serving reheated sweet potatoes alongside.