Haddock and Potatoes Recipe: Buttery Pan-Seared Fish with Crispy Spuds

This haddock and potatoes recipe delivers a perfect balance of crispy, golden spuds and tender, buttery fish that feels like a restaurant-quality meal.

The secret lies in pan-searing the haddock until the skin crackles while roasting the potatoes until they develop a satisfying crunch—both achieved with minimal effort but maximum flavor. I developed this dish after years of testing, ensuring every bite delivers that ideal contrast between flaky fish and crispy potatoes.

What makes this recipe stand out is its simplicity without sacrificing depth of flavor. The haddock stays moist and tender thanks to a precise cooking time, while the potatoes achieve that coveted crispy exterior through high-heat roasting.

A touch of garlic and herbs elevates both components, creating a dish that’s both comforting and elegant. The best part? It comes together in under 45 minutes without requiring advanced techniques.

By the time you serve this dish, you’ll have perfectly crispy potatoes with caramelized edges and fluffy interiors, paired with haddock that’s golden, crisp-skinned, and impossibly tender. The aroma alone—garlicky, buttery, and slightly herby—will have everyone at the table anticipating the first bite.

This is the kind of meal that transforms a simple dinner into something special.

Serve with a squeeze of lemon and a sprinkle of fresh parsley for brightness, or drizzle with a light white wine sauce for extra richness. The recipe scales easily for gatherings, and leftovers reheat beautifully. Let’s get cooking!

Ingredients for haddock potato

Four crispy potatoes, four golden haddock fillets, and a handful of herbs transform into a restaurant-worthy meal.

The haddock is the star here, so prioritize freshness. Look for fillets with a vibrant color and firm texture—avoid any with a fishy odor or dull skin. Whole Foods or your local seafood market are reliable sources for quality haddock, often offering it previously frozen for even better texture. Baby potatoes are ideal for their even cooking and crispy edges, but regular potatoes work too (just cut them smaller). The key is to halve them all uniformly—no need to peel unless they're waxy varieties. For the herbs, fresh dill and parsley add brightness, but if you're short on time, dried dill at one-third the amount will suffice.

No fresh dill? Substitute with an extra tablespoon of parsley—it won’t be identical, but the dish will still shine. Running low on butter? Olive oil works in a pinch, though butter creates that signature richness. The flour dredge is non-negotiable for crispy skin—skip it, and you’ll miss that satisfying crunch. For the potatoes, if you can’t find baby potatoes, cut regular potatoes into 1-inch chunks. The garlic can be pre-minced from a jar, but fresh is always better. If you’re feeling adventurous, add a pinch of smoked paprika to the potato mix for a subtle depth of flavor.

This dish reheats beautifully—just warm the potatoes and fish in a 350°F oven for 10 minutes, covered loosely with foil. Store leftovers in airtight containers for up to 3 days, though the fish is best eaten fresh. The potatoes can be prepped ahead and refrigerated for 24 hours before roasting—just pat them dry before cooking to ensure crispiness. For extra convenience, portion the haddock and potatoes into separate containers before storing. The lemon juice can be made ahead, but add it fresh when serving to preserve brightness.

Step-by-step instructions for buttery pan-seared haddock with crispy potatoes

Here's how to achieve perfectly crispy haddock and golden potatoes in one pan.

Preheat your oven to 425°F. Toss the 2 lb baby potatoes (halved) with 2 tbsp extra-virgin olive oil, 0.5 tsp dried thyme, 0.75 tsp salt, and 0.25 tsp ground black pepper on a baking sheet. Spread them in a single layer, cut-side down, for even browning.

Roast for 25-30 minutes until the edges are golden brown and the potatoes are tender when pierced with a fork. Flip them halfway through cooking to ensure crispiness on both sides. Remove from oven and set aside—keep them warm while you prepare the haddock.

While the potatoes roast, pat the 4 whole haddock fillets completely dry with paper towels—this is crucial for crispy skin. Place them skin-side down on a plate and season generously with 0.75 tsp salt and 0.25 tsp ground black pepper on both sides.

In a shallow dish, combine the 2 tbsp all-purpose flour with 0.5 tsp dried thyme. Lightly dredge each fillet by pressing it gently into the flour mixture, coating both sides evenly. The flour creates a delicate crust that will crisp beautifully when seared.

Heat a large oven-safe skillet over medium-high heat. Add 0.25 cup unsalted butter (about half of the total) and let it melt completely, then foam and brown slightly—this adds rich flavor. Place the dredged haddock fillets skin-side down in the skillet, being careful not to overcrowd.

Cook undisturbed for 3-4 minutes until the skin is golden brown and crispy. Flip carefully and cook for another 2-3 minutes until the fish is opaque throughout and flakes easily with a fork. Remove the fillets to a plate and tent with foil to keep warm.

Return the skillet to the stove over medium heat. Add the roasted potatoes back to the pan along with the remaining 0.25 cup unsalted butter. Toss everything together for 1-2 minutes until the potatoes are coated in the melted butter and any browned bits from the haddock.

Add the 4 minced garlic cloves and cook for 30 seconds until fragrant. Pour in the 2 tbsp lemon juice and stir to combine. The acidity brightens the flavors and cuts through the richness of the butter.

Return the haddock fillets to the skillet with the potatoes, spooning the buttery garlic sauce over them. Sprinkle with the 0.25 cup chopped fresh dill and 0.25 cup chopped fresh parsley for a fresh finish. Serve immediately while the haddock is still warm and the potatoes are crispy.

The haddock should have a crispy, golden-brown skin that gives way to tender, flaky flesh. Each bite of potato should deliver a satisfying crunch followed by buttery, herby richness. The lemony garlic sauce ties everything together with a bright, balanced finish.

Creative variations of this recipe

Classic British Style

Transform this dish into a traditional British fish and chips variation by swapping the potatoes for thick-cut fries (about 1.5 inches thick). Toss the fries in 1 cup cornstarch and 1 tsp salt before deep-frying at 350°F for 4-5 minutes until golden.

Serve the haddock with tartar sauce (mix ½ cup mayonnaise, 1 tbsp capers, 1 tbsp Dijon mustard, and 1 tbsp chopped pickles) and a sprinkle of malt vinegar powder for that classic British pub feel. 🍟

Mediterranean Herb Twist

Infuse the dish with Mediterranean flavors by adding 1 tbsp dried oregano and 1 tsp crushed fennel seeds to the potato seasoning.

Swap the dill for ½ cup chopped fresh basil or oregano and finish with a drizzle of lemon-olive oil sauce (mix 3 tbsp olive oil, 1 tbsp lemon juice, and 1 minced garlic clove). Garnish with toasted pine nuts for a touch of crunch and texture. 🌿

Creamy Mashed Potato Upgrade

For a luxurious twist, mash the potatoes with ¼ cup unsalted butter, ¼ cup heavy cream, and ½ cup grated Gruyère cheese after roasting.

Top the haddock with a béchamel sauce (melt 2 tbsp butter, whisk in 2 tbsp flour, then gradually add 1 cup warm milk and ½ cup grated Parmesan) for a creamy, indulgent finish. Perfect for a cozy winter meal! 🧀

Spicy Cajun Kick

Add a Cajun-inspired heat by tossing the potatoes with 1 tsp smoked paprika, ½ tsp cayenne pepper, and ½ tsp garlic powder before roasting. Season the haddock with 1 tsp Cajun seasoning (like Tony Chachere’s) and a pinch of fresh thyme.