Recipe for Broiled Flounder: Lemon-Garlic Butter in 15 Minutes

Broiled flounder delivers tender, flaky fish with minimal effort and maximum flavor. This method transforms delicate fillets into a 15-minute meal that feels special enough for company.

The secret lies in the high-heat broiler, which creates a golden crust while keeping the interior perfectly moist. A simple lemon-garlic butter baste adds brightness and richness without overpowering the mild fish.

What emerges is flounder with a lightly caramelized surface and flesh that separates effortlessly at the touch of a fork. The butter melts into every bite, carrying the zesty garlic and citrus notes throughout.

Serve with steamed vegetables or a crisp white wine for a complete, elegant dinner.

Ingredients for Recipe for Broiled Flounder

Delicate flounder fillets meet bright lemon-garlic butter for an elegant yet effortless dish.

The flounder is the star—source fresh, skinless fillets from a trusted seafood counter or Whole Foods. Look for fillets about 1/2-inch thick to ensure even cooking under the broiler. The butter quality matters too: European-style unsalted (like Plugrá) has higher fat content, which means less burning under high heat. Avoid pre-grated Parmesan-style toppings; they contain anti-caking agents that can scorch.

No white wine for deglazing? Substitute chicken or vegetable broth with a squeeze of lemon. Fresh out of parsley? Chives or dill work beautifully. If using frozen flounder (thawed completely first), pat it very dry to achieve that golden crust. The paprika adds color more than heat—skip it if you prefer a neutral presentation, but don’t omit the red pepper flakes if you like a subtle kick.

This cooks so quickly there’s no need for prep ahead. Store fresh flounder in the coldest part of your fridge and use within 1-2 days. Leftover cooked fish? Rare, but it keeps for 2 days—reheat gently to avoid drying it out.

Step-by-Step Instructions for Broiled Flounder

Master the technique for perfectly cooked fish with bright, zesty flavor in under a quarter hour.

Step 1: Prepare the Broiler and Season the Fillets

Position your oven rack 6 inches from the broiler element and preheat the broiler on high. This proximity ensures the flounder cooks through quickly without drying out. While heating, brush a broiler pan with the 1 tablespoon olive oil to prevent sticking.

Pat the 1.5 lb flounder fillets dry with paper towels—this step guarantees a good sear. Season both sides evenly with the 0.75 teaspoon kosher salt, 0.5 teaspoon freshly ground black pepper, and 0.25 teaspoon paprika. The paprika adds subtle depth and a hint of color.

Step 2: Broil the Fillets Until Opaque

Arrange the seasoned fillets on the prepared pan in a single layer. Broil for 4-5 minutes until the edges begin to turn white and opaque. Watch closely—the high heat works fast, and you want to catch them at the moment they start to firm up but remain moist.

Carefully flip the fillets using a thin spatula. Broil for another 3-4 minutes until the fish flakes easily with a fork and reaches 145°F internally. The fillets should be just cooked through, with a delicate, buttery texture. Avoid overcooking; flounder dries out quickly.

Step 3: Prepare the Lemon-Garlic Butter

While the fish broils, melt the 6 tablespoons unsalted butter in a small saucepan over low heat. Add the 4 cloves minced garlic cloves and cook for 1 minute, stirring constantly, until fragrant but not browned. Garlic burns easily, so keep the heat gentle.

Remove from heat and stir in the 3 tablespoons fresh lemon juice and 1 tablespoon lemon zest. If using, add the 0.125 teaspoon red pepper flakes for a subtle kick. The acid in the lemon will slightly thicken the butter, creating a glossy, flavorful sauce.

Step 4: Finish and Garnish

Transfer the broiled flounder to a serving platter. Spoon the lemon-garlic butter generously over the fillets, allowing it to pool slightly on the plate. For extra flair, return the pan to the broiler for 30 seconds to blister the tops—this step is optional but adds a beautiful finish.

Sprinkle the 0.25 cup chopped fresh parsley evenly over the dish. If desired, deglaze the broiler pan with the 2 tablespoons dry white wine, scraping up any browned bits, and drizzle this pan sauce over the fish for added depth. Serve immediately with lemon wedges for a bright, elegant presentation.

Perfect Pairings for These Flavors

Side Dish Pairings

I love serving this with roasted asparagus—toss 1 lb trimmed spears with 1 tbsp olive oil and broil alongside the flounder for 8-10 minutes. The charred tips complement the fish beautifully. 🌱

Starch Suggestions

Creamy polenta makes an excellent base to soak up the lemon-garlic butter. Cook 1 cup cornmeal in 4 cups broth until thick, then stir in 2 tbsp butter. Alternatively, wild rice pilaf adds nutty depth without overpowering the mild flounder.

Wine Pairings

A crisp Sauvignon Blanc from New Zealand cuts through the richness perfectly. For red lovers, a light Pinot Noir offers earthy notes that won’t overwhelm. I always recommend Kim Crawford or Oyster Bay for consistent quality. 🍷

Bread Options

Serve with warm crusty bread to mop up every last drop of sauce. A baguette from your local bakery, sliced and warmed in the oven for 5 minutes, is ideal. For a twist, try garlic naan for an Indian-inspired fusion.

Simple Salad

A mixed greens salad with a lemon vinaigrette echoes the dish’s citrus notes. Toss 4 cups arugula with 2 tbsp olive oil, 1 tbsp lemon juice, and shaved Parmesan. This keeps the meal light yet satisfying.

Frequently Asked Questions