This dish brings together crispy, pan-seared barramundi fillets seasoned with smoked paprika, finished with a rich brown butter sauce brightened with lemon and scallions. On the side, creamy sour cream mashed potatoes and tender roasted broccoli round out the plate for a satisfying, well-balanced meal.
The barramundi cooks up quickly, first seared skin-side down for crunch, then finished in the oven. While it roasts, you can whip up the brown butter sauce in the same pan, infusing it with scallion whites and lemon zest. It’s a restaurant-quality dinner that comes together in under an hour.
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Values are calculated per serving from ingredient amounts and the ingredient nutrition reference per 100g. Allergen and diet labels use available ingredient metadata and name matching; always check product labels for strict diets or allergies. Some ingredient amounts or nutrition values were incomplete, so this is marked as a partial estimate.
Ingredients
Instructions
- Adjust racks to top and middle positions and preheat oven to 425°F. Wash and dry produce. Dice potatoes into ½-inch pieces. Trim and thinly slice scallions, separating whites from greens. Zest and quarter lemon.
- Place potatoes in a medium pot with stock concentrate and enough salted water to cover by 2 inches. Bring to a boil and cook until tender, 15-20 minutes. Reserve ½ cup potato cooking liquid, then drain and return potatoes to pot. Mash with sour cream and 1 TBSP butter (2 TBSP for 4 servings) until smooth, adding splashes of reserved potato cooking liquid as needed. Season generously with salt and pepper. Keep covered off heat until ready to serve.
- While potatoes cook, cut broccoli into bite-size pieces if necessary. Toss on a baking sheet with a drizzle of oil, salt and pepper. Roast on top rack until golden brown and crispy, 15-20 minutes.
- While broccoli roasts, pat barramundi dry with paper towels. Rub each fillet with a drizzle of oil. Season generously all over with salt and pepper, then rub paprika into flesh sides. Heat a large drizzle of oil in a large, preferably nonstick, pan over medium-high heat. Add barramundi, skin sides down; cook until skin is crispy, 3 minutes. Turn off heat. Transfer barramundi, skin sides down, to a second lightly oiled baking sheet. Roast on middle rack until cooked through, 10-12 minutes.
- Meanwhile, heat pan used for barramundi over medium heat. Add 2 TBSP butter (4 TBSP for 4 servings) and scallion whites. Cook, carefully swirling butter, until foamy and flecked with amber brown bits, 2-3 minutes. Turn off heat and add a big squeeze of lemon juice. Stir in lemon zest; season with salt and pepper.
- Divide mashed potatoes, barramundi and broccoli between plates. Top potatoes and barramundi with brown butter and sprinkle with scallion greens. (If brown butter is done before the rest of the meal, reheat over low heat, stirring, for 1 minute.) Serve with any remaining lemon wedges on the side.
Recipe Tips
For extra crispy skin, make sure the barramundi is patted very dry before seasoning.
If you don’t have sour cream, Greek yogurt works well in the mashed potatoes.
The brown butter can be made ahead and gently reheated when ready to serve.
FAQ
Can I use another fish instead of barramundi?
Yes, you can substitute with any firm white fish like cod, halibut or sea bass. Adjust cooking time as needed.
How do I know when the barramundi is cooked through?
The fish should flake easily with a fork and be opaque throughout. A thermometer inserted into the thickest part should read 145°F.
Can I make this recipe dairy-free?
Yes, use a dairy-free butter substitute and omit the sour cream or use a plant-based alternative. The mashed potatoes may need extra liquid.

























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