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Pan-Seared Flounder with Lemon-Caper Sauce

By David Yu

Published on September 16, 2025

Time

30 minutes

Yield

Serves 4

Pan-Seared Flounder with Lemon-Caper Sauce

Ingredients

2 tablespoons all-purpose flour ¾ teaspoon table salt, divided¼ teaspoon pepper 6 (4- to 6-ounce) skinless flounder fillets, ¼ to ½ inch thick4 teaspoons vegetable oil, divided3 garlic cloves, minced⅓ cup dry white wine ⅓ cup water 1½ teaspoons grated lemon zest plus 1½ tablespoons juice3 tablespoons unsalted butter, cut into 6 pieces and chilled2 tablespoons capers, rinsed1 tablespoon minced fresh parsley

Before You Begin

You can substitute sole or tilapia for the flounder. If using tilapia, let the fillets sit for 30 to 60 seconds at the end of step 3. To use frozen fish, thaw and then let it sit between triple layers of paper towels for 10 minutes, replacing towels as needed and dabbing with towels until almost no moisture appears. 

Instructions

  1. Whisk 2 tablespoons all-purpose flour, ½ teaspoon table salt, and ¼ teaspoon pepper together in small bowl. Reserve 1 teaspoon flour mixture, then spread remaining mixture in even layer on large plate. 
  2. Dry 6 skinless flounder fillets thoroughly with paper towels. Place 3 fillets, skinned side down, into flour mixture on plate to coat 1 side. Shake off excess and transfer to rimmed baking sheet, floured side up. 
  3. Heat 1½ teaspoons vegetable oil in 12-inch skillet over medium-high heat until just smoking. Carefully place fillets, floured side down, in pan and cook until bottom is golden brown, about 2 minutes. Remove skillet from heat. Using 2 thin spatulas, gently flip fillets and let stand until second side is opaque, 15 to 30 seconds. Transfer fillets, browned side up, to platter. Wipe out skillet with paper towels and repeat steps 2 and 3 with remaining fillets and 1½ teaspoons oil.
  4. Wipe out skillet with paper towels. Add remaining 1 teaspoon oil and 3 minced garlic cloves and cook over medium heat until fragrant, about 30 seconds. Stir in reserved 1 teaspoon flour mixture and cook for 15 seconds. Whisk in ⅓ cup white wine, ⅓ cup water, 1½ teaspoons grated lemon zest and 1½ tablespoons juice, and remaining ¼ teaspoon salt. Bring to simmer and cook until sauce has thickened slightly, about 2 minutes. 
  5. Off heat, whisk in 3 tablespoons chilled unsalted butter, cut into 6 pieces. Stir in 2 tablespoons rinsed capers and 1 tablespoon minced parsley. Spoon sauce over fish and serve.
Pan-Seared Flounder with Lemon-Caper Sauce
Photography by Steve Klise. Styling by Joy Howard.

Pan-Seared Flounder with Lemon-Caper Sauce

Headshot of David Yu
By David Yu

Published on September 16, 2025

Save

Time

30 minutes

Yield

Serves 4

Ingredients

2 tablespoons all-purpose flour
¾ teaspoon table salt, divided
¼ teaspoon pepper
6 (4- to 6-ounce) skinless flounder fillets, ¼ to ½ inch thick
4 teaspoons vegetable oil, divided
3 garlic cloves, minced
⅓ cup dry white wine
⅓ cup water
1½ teaspoons grated lemon zest plus 1½ tablespoons juice
3 tablespoons unsalted butter, cut into 6 pieces and chilled
2 tablespoons capers, rinsed
1 tablespoon minced fresh parsley

Test Kitchen Techniques

Ingredients

2 tablespoons all-purpose flour
¾ teaspoon table salt, divided
¼ teaspoon pepper
6 (4- to 6-ounce) skinless flounder fillets, ¼ to ½ inch thick
4 teaspoons vegetable oil, divided
3 garlic cloves, minced
⅓ cup dry white wine
⅓ cup water
1½ teaspoons grated lemon zest plus 1½ tablespoons juice
3 tablespoons unsalted butter, cut into 6 pieces and chilled
2 tablespoons capers, rinsed
1 tablespoon minced fresh parsley

Test Kitchen Techniques

Ingredients

2 tablespoons all-purpose flour
¾ teaspoon table salt, divided
¼ teaspoon pepper
6 (4- to 6-ounce) skinless flounder fillets, ¼ to ½ inch thick
4 teaspoons vegetable oil, divided
3 garlic cloves, minced
⅓ cup dry white wine
⅓ cup water
1½ teaspoons grated lemon zest plus 1½ tablespoons juice
3 tablespoons unsalted butter, cut into 6 pieces and chilled
2 tablespoons capers, rinsed
1 tablespoon minced fresh parsley

Test Kitchen Techniques

Why This Recipe Works

Quick-cooking, versatile flatfish such as flounder and sole are ultraconvenient for a weeknight dinner, but they can also be tricky, as they’re prone to overcooking and turning dry and their delicate flesh can easily tear. To guard against overcooking, we thoroughly dried the fish and dredged it with flour on one side, as excess moisture can impede browning and slow down cooking. Using a well-oiled stainless-steel skillet rather than nonstick allowed us to cook the fish at a higher temperature, quickly altering the proteins in the fish to keep them from bonding to the pan. We cooked the fish on one side only and used the residual heat in the pan to finish the other side to ensure the flaky flesh stayed moist. The delicate sweetness of the fish paired perfectly with a quick piccata-inspired sauce of butter, capers, parsley, and lemon.

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Before You Begin

You can substitute sole or tilapia for the flounder. If using tilapia, let the fillets sit for 30 to 60 seconds at the end of step 3. To use frozen fish, thaw and then let it sit between triple layers of paper towels for 10 minutes, replacing towels as needed and dabbing with towels until almost no moisture appears. 

Instructions

  1. Whisk 2 tablespoons all-purpose flour, ½ teaspoon table salt, and ¼ teaspoon pepper together in small bowl. Reserve 1 teaspoon flour mixture, then spread remaining mixture in even layer on large plate. 
  2. Dry 6 skinless flounder fillets thoroughly with paper towels. Place 3 fillets, skinned side down, into flour mixture on plate to coat 1 side. Shake off excess and transfer to rimmed baking sheet, floured side up. 
  3. Heat 1½ teaspoons vegetable oil in 12-inch skillet over medium-high heat until just smoking. Carefully place fillets, floured side down, in pan and cook until bottom is golden brown, about 2 minutes. Remove skillet from heat. Using 2 thin spatulas, gently flip fillets and let stand until second side is opaque, 15 to 30 seconds. Transfer fillets, browned side up, to platter. Wipe out skillet with paper towels and repeat steps 2 and 3 with remaining fillets and 1½ teaspoons oil.
  4. Wipe out skillet with paper towels. Add remaining 1 teaspoon oil and 3 minced garlic cloves and cook over medium heat until fragrant, about 30 seconds. Stir in reserved 1 teaspoon flour mixture and cook for 15 seconds. Whisk in ⅓ cup white wine, ⅓ cup water, 1½ teaspoons grated lemon zest and 1½ tablespoons juice, and remaining ¼ teaspoon salt. Bring to simmer and cook until sauce has thickened slightly, about 2 minutes. 
  5. Off heat, whisk in 3 tablespoons chilled unsalted butter, cut into 6 pieces. Stir in 2 tablespoons rinsed capers and 1 tablespoon minced parsley. Spoon sauce over fish and serve.

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