Crisp-Skinned Trout with Warm Purple Potato Salad and Roasted Eggplant–Corno di Toro Peppers
Crisp trout skin gives way to tender flesh over warm purple potatoes dressed with shallot, vinegar, and parsley. Roasted eggplant and sweet Corno di Toro peppers bring silky texture and late-season sweetness, with lemon keeping the whole plate bright.
By Jonathan Katzman · Cooked and photographed · Recipe updated
Serves: 4 servings
Tags: gluten-free, nut-free, pescatarian

Crisp-Skinned McFarland Springs Trout
Thoroughly drying the skin and cooking mostly skin-side down produces a crisp crust while protecting the delicate flesh.
Ingredients
- 4 portions skin-on McFarland Springs trout fillets, about 6 oz each, scaled and pin-boned
- 2 tablespoons ghee
- 3/4 teaspoon kosher salt, or to taste
- 1/4 teaspoon freshly ground black pepper
- 1 lemon, cut into wedges
Instructions
- Pat the trout thoroughly dry, especially the skin. Keep uncovered in the refrigerator while preparing the sides, then pat dry again before cooking.
- Season both sides with salt and pepper just before searing. Heat two large skillets over medium-high heat and divide the ghee between them.
- Lay the trout skin-side down in the hot ghee. Press gently with a fish spatula for 20–30 seconds to keep the skin flat, then reduce the heat to medium.
- Cook without moving for 5–8 minutes, depending on thickness, until the skin is deeply golden and releases readily. The flesh should be turning opaque up the sides.
- Turn carefully and cook the flesh side for 1–3 minutes, until the thickest part reaches 145°F. Transfer skin-side up to plates immediately; serve lemon alongside rather than wetting the crisp skin.
Notes
- If McFarland Springs trout is unavailable, use another skin-on trout with similar thickness.
- Cook in batches if necessary rather than crowding the skillet; keep cooked portions skin-side up and uncovered.
Warm Purple Potato Salad
Warm potatoes absorb the sharp shallot dressing, while a generous handful of parsley keeps the salad fresh rather than heavy.
Ingredients
- 1 1/2 lb purple potatoes, scrubbed and cut into 1-inch chunks
- 1 small shallot, finely minced
- 1 1/2 tablespoons red wine vinegar
- 3 tablespoons extra-virgin olive oil
- 1/2 cup loosely packed flat-leaf parsley leaves, roughly torn
- to taste kosher salt and freshly ground black pepper
Instructions
- Combine the shallot and vinegar in a large bowl with a pinch of salt. Let stand while the potatoes cook.
- Place the potatoes in a saucepan, cover with cold water by 1 inch, and salt the water. Bring to a gentle boil, then simmer for 12–18 minutes, until a knife enters easily but the pieces still hold their shape.
- Drain thoroughly and let steam-dry for 2 minutes. Whisk the olive oil into the shallot mixture, then gently fold in the warm potatoes.
- Let stand for 5 minutes to absorb the dressing. Fold in the parsley shortly before serving and adjust the salt, pepper, and acidity.
Notes
- If the potatoes absorb all the dressing and seem dry, loosen with a spoonful of warm water and a small drizzle of olive oil.
Roasted Eggplant and Corno di Toro Peppers
High heat browns the eggplant and concentrates the peppers' sweetness. A late addition of garlic and a lemon finish add fragrance without scorching or weighing down the vegetables.
Ingredients
- 1 lb Japanese or small Italian eggplant, cut into 1-inch chunks
- 12 oz red and yellow Corno di Toro sweet peppers, stemmed, seeded, and cut into broad strips
- 3 tablespoons extra-virgin olive oil
- 2 cloves garlic, finely chopped
- 1 tablespoon fresh lemon juice
- 1/3 cup loosely packed flat-leaf parsley leaves, roughly torn
- 3/4 teaspoon kosher salt, or to taste
- 1/4 teaspoon freshly ground black pepper
Instructions
- Heat the oven to 425°F. Toss the eggplant and peppers with the olive oil, salt, and black pepper.
- Spread in a single layer on a large rimmed baking sheet, using two sheets if needed to prevent crowding.
- Roast for 20 minutes, then turn the vegetables. Continue roasting for 5–10 minutes, until the eggplant is creamy inside and the peppers have browned edges.
- Fold in the garlic and roast for another 3–5 minutes, until fragrant but not burned.
- Transfer to a bowl and toss gently with lemon juice and parsley. Taste for salt and serve warm.
Notes
- Sweet pointed Italian peppers are the closest substitute for Corno di Toro; red and yellow bell peppers also work.
- Keep the eggplant in substantial chunks so it becomes tender without collapsing into a purée.
Overall Timing / Workflow
The oven handles the vegetable medley while the potatoes simmer, leaving the final minutes free for the trout.
Instructions
- 0:00 — Heat the oven to 425°F. Dry the trout and refrigerate uncovered. Cut the eggplant and peppers.
- 0:10 — Put the vegetables in the oven. Prepare the potatoes and start them in cold salted water.
- 0:15 — Macerate the shallot in vinegar, prepare the parsley and garlic, and cut the lemon wedges.
- 0:30 — Turn the roasted vegetables. Drain and dress the potatoes when tender; keep loosely covered in a warm spot.
- 0:35 — Add the garlic to the nearly finished vegetables. Heat the fish skillets and season the trout.
- 0:40 — Remove and finish the roasted vegetables. Sear the trout while the sides stay warm.
- 0:50 — Fold parsley into the potatoes, check both sides for seasoning, and plate the trout immediately.
Notes
- Allow about 50–55 minutes overall; thick trout portions or slower-heating equipment may take slightly longer.
Plating
Keeping the two sides adjacent preserves their contrasting textures and gives the crisp trout a broad, colorful foundation.
Instructions
- Spoon the warm purple potato salad onto one side of each warmed plate and the roasted eggplant and peppers onto the other.
- Set a trout portion across the upper edges of the vegetables, skin-side up, leaving much of each side visible.
- Keep dressing and lemon juice off the skin. Serve immediately with the lemon wedges alongside.
Leftover Path
Storing the fish separately prevents the crisp skin from soaking in the vegetable juices and allows gentler reheating.
Instructions
- Refrigerate the trout, potato salad, and roasted vegetables in separate airtight containers within 2 hours. Use within 3 days.
- For a warm plate, reheat only the portions needed, covered, in a 300°F oven until they reach 165°F. Uncover the trout briefly at the end; its skin will be softer than when freshly cooked.
- Alternatively, flake the chilled trout over the potatoes and roasted vegetables for a cold lunch, brightened with fresh lemon and parsley.