Catfish Po' Boys

Crisp, flaky fillets of fried fish star in this classic po' boy.

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Vicky Wasik

Why It Works

  • Dredging the fish in seasoned cornmeal–corn flour mix ensures a crunchy, light coating that lends extra flavor to the overall dish.
  • Letting the dredged fish rest in the refrigerator before frying helps prevent the coating from sloughing off after frying.

Think of po’ boys as crayons. Like carnation pink, you’ve got your variations on the classics: buttery “BBQ" shrimp instead of fried shrimp or, one of my Jazz Fest favorites, the crab meat po’ boy, stuffed with a rich mixture that’s somewhere between stuffed crab filling and a crabcake. Then you have your less common hues, like your burnt umbers and raw siennas that you’ll only find in the jumbo pack. These are the cheffy takes, such as fried cauliflower or báhn mì–po’ boy mashups. But right up front in the standard pack are hot sausage, roast beef, shrimp, oyster, soft shell crab (when in season), and catfish po’ boys.

It’s no mistake that seafood makes up the majority of this list, given Louisiana’s plentiful bayous, swamps, lakes, rivers, and channels, plus the Gulf of Mexico abutting its entire southern border. And while that means we have an abundant variety of fish—redfish, black drum, flounder, and wahoo, to name a few—catfish is almost always the choice of fish for battering and frying, whether it’s going to be served up on its own or stuffed into a po’ boy. Sure, you will see the occasional fried trout po’ boy, but go to any Friday Lenten fish fry or sandwich shop anywhere in South Louisiana, and a golden-crisp fillet of catfish is what you’re going to find between two halves of French bread. 

Choosing the Catfish (or Other Fish) for Your Po’ Boy 


Catfish’s firm but succulent flesh and its rich and delicately saline flavor make it an ideal fry-up. Because it is a bottom feeder, it does tend to take on the flavor of its diet, which means some folks can find it muddy-tasting. This is more true for wild-caught catfish. Because their diet can be more closely controlled, farm-raised catfish tend to be much milder. (The Monterey Bay Aquarium’s Seafood Watch lists several sources of catfish farmed in the United States as Certified and Best Choices, the organization’s top two ratings.)

If you want another option, try a mild, firm fish, such as tilapia, flounder, petrale sole, hake, or cod. The coating of seasoned corn flour and the delivery vehicle of chewy-crisp French bread will keep your catfish substitute from smacking of fish and chips—not that there’s anything wrong with fish and chips, but we’re making po’ boys here, y’all. Or, several shops around New Orleans serve fried trout po’ boys, making it a good alternative.

Nail the Dredging Mixture for Your Fried Fish


Though it’s most common to rely on corn flour for dredging seafood in South Louisiana–its fine texture keeps it from overwhelming smaller shellfish—more substantial fish fillets can hold up to the addition of a bit of coarser cornmeal in the mix. (I personally like a little cornmeal crunch on my catfish, and I found it in about half of the recipes I surveyed while developing this recipe.) And, of course, the dredge must be seasoned. We Louisianians like our food spicy, as in, with plentiful spice—they don’t have to be fiery, but they have to be there. (And no, just salt and pepper does not count.) I recommend stirring at least a tablespoon of Creole seasoning into the corn flour, but let your taste buds guide you and be aware that salt and heat levels vary from brand to brand.

Get Some Squishy French Bread for Your Po’ Boys

This recipe calls for French bread, which is the traditional po’ boy bread in New Orleans and elsewhere in Louisiana. Of course, there are many types of bread that the French customarily bake, but we’re talking about the 10- or 20-inch loaves with a light but crisp crust and an airy crumb. Usually they’re slightly wider than a French baguette and more “squishable,” to use a technical term. Vietnamese baguettes used for bánh mì are a great alternative. Otherwise, use regular sub or hoagie rolls. If the interior of the bread is very dense, scoop most of it out and discard it before building your po' boys.

Dress That Po’ Boy


Then round out tradition by serving your po’ boy "dressed" with a generous smear of mayo, a layer of thinly sliced tomatoes, and a helping of shredded lettuce. I always find that a squeeze of fresh lemon juice enhances the flavor of fried catfish just so, as does the addition of Creole mustard, tartar sauce, or rémoulade, depending on your preference.  And with the exception of a hot sausage po'boy, I can't think of one that isn't made better by a couple dashes of hot sauce.

Recipe Details

Catfish Po' Boys Recipe

Prep 15 mins
Cook 30 mins
Total 45 mins
Serves 4 servings
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Ingredients

For the Fish

  • 1 1/2 cups corn flour (10 ounces; 280 g) (see notes)

  • 1/2 cup cornmeal (2 1/2 ounces; 70 g)

  • 2 tablespoons (10 g) homemade or store-bought Creole seasoning

  • 2 large eggs

  • 1/3 cup buttermilk

  • 4 catfish fillets, halved lengthwise along natural seam (6-ounce; 170-gram), see note

  • 2 quarts (1.9 l) vegetable oil, for frying

  • 1 tablespoon Creole seasoning, such as Tony Chacheres or Zatarain’s

  • 1 tablespoon granulated garlic

For Serving

  • French bread, cut into 4 10-inch sections (or 4 sub-style rolls), sliced lengthwise and lightly toasted

  • Mayonnaise (suggested) or rémoulade (recipe below, if desired)

  • 2 medium tomatoes, thinly sliced

  • 3/4 cup dill pickle chips (optional)

  • 1 small head iceberg lettuce, shredded

  • Optional: Lemon wedges, Creole mustard, tartar sauce, or hot sauce, such as Tabasco or Crystal

For the Rémoulade (Optional)

  • 3/4 cup (175 ml) mayonnaise

  • 1/4 cup (45 g) minced dill pickles

  • 2 tablespoons (10 g) drained prepared horseradish

  • 1 tablespoon (15 mlhot sauce

  • 1 tablespoon (15 mlDijon mustard

  • 1 tablespoon (15 mlWorcestershire sauce

  • 1 tablespoon (15 mlfresh lemon juice

  • 1 garlic clove, minced

  • Kosher salt and freshly ground pepper

Directions

  1. For the Fish: In a large bowl, whisk together the eggs and buttermilk. Add the catfish, and let soak for 5 minutes. While the catfish soaks, in a medium bowl or shallow baking dish, whisk together corn flour, cornmeal, and Creole seasoning. Set a wire rack inside a rimmed baking sheet.

    Pat fillets dry with a napkin or paper towel. Working in batches, dredge the fish in the seasoned corn flour mixture, shake off excess, and transfer to prepared wire rack. Repeat dredging process with remaining fillets. Refrigerate fish for 15 minutes.

  2. In a large Dutch oven, heat oil over medium-high heat to 375°F (190°C). Carefully add half the fish to the oil and cook, stirring occasionally with a spider skimmer, until golden brown, 4 to 5 minutes. Transfer cooked fish to second wire rack set inside a rimmed baking sheet and lined with paper towels. Season with salt to taste. Repeat with remaining fillets.

  3. For Serving: Open rolls, and spread cut sides with mayonnaise and/or your condiments of choice. Divide the remaining ingredients evenly among the rolls, placing tomatoes and pickles (if using) against top of roll, followed by lettuce and fish. Serve immediately, and enjoy.

  4. For the Rémoulade, If Making: In a small bowl, stir together mayonnaise, minced pickles, horseradish, hot sauce, mustard, Worcestershire sauce, lemon juice, and garlic until thoroughly combined. Season to taste with salt and pepper. Set aside.

Special equipment

Rimmed baking sheet, Wire rack, Large Dutch oven, Instant-read thermometer

Notes

Corn flour is very finely ground flour milled from whole corn kernels. Bob’s Red Mill offers corn flour. Or, in a pinch, you can also use masa harina.

Catfish is the traditional fish to fry for po’ boys in South Louisiana, but other mild, firm fish, such as tilapia, flounder, petrale sole, hake, or cod can also be used.

Make-Ahead and Storage

Rémoulade can be refrigerated for up to 3 days. Po' boys are best enjoyed right away.

Nutrition Facts (per serving)
4489 Calories
454g Fat
96g Carbs
25g Protein
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Nutrition Facts
Servings: 4
Amount per serving
Calories 4489
% Daily Value*
Total Fat 454g 582%
Saturated Fat 70g 350%
Cholesterol 118mg 39%
Sodium 3242mg 141%
Total Carbohydrate 96g 35%
Dietary Fiber 9g 31%
Total Sugars 10g
Protein 25g
Vitamin C 13mg 65%
Calcium 135mg 10%
Iron 7mg 38%
Potassium 823mg 18%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)