Experience the flavors of New Orleans with this classic catfish po' boy. Crispy, golden catfish fillets are nestled in a toasted French bread bun, topped with fresh lettuce, juicy tomato, and creamy mayonnaise. This sandwich is a delightful combination of textures and tastes that will transport you straight to the heart of Louisiana.
When preparing this recipe, you might need to visit the supermarket for a few key ingredients. Fresh catfish fillets are essential for the authentic taste, and buttermilk is used to help the cornmeal coating adhere to the fish. Cajun seasoning adds the signature spice, and French bread provides the perfect vessel for your sandwich. Make sure to have these items on your shopping list.

Ingredients For Catfish Po Boy Recipe
Catfish: Fresh fillets are the star of this dish, providing a mild, flaky texture that pairs perfectly with the crispy coating.
Cornmeal: This ingredient gives the catfish its signature crunch and golden color when fried.
All-purpose flour: Combined with cornmeal, it helps create a light, crispy coating for the fish.
Cajun seasoning: A blend of spices that adds a bold, zesty flavor to the catfish.
Buttermilk: Used to moisten the fillets before dredging, ensuring the coating sticks well.
French bread: Split and toasted, it serves as the perfect base for the sandwich.
Lettuce: Shredded for a fresh, crisp topping.
Tomato: Sliced to add juiciness and a burst of flavor.
Mayonnaise: Adds creaminess and helps balance the spices in the sandwich.
Technique Tip for This Recipe
To achieve a perfectly crispy catfish, make sure to let the fillets rest for a few minutes after dredging them in the cornmeal mixture. This allows the coating to adhere better, resulting in a more even and crunchy texture when fried. Additionally, ensure your oil is at the right temperature—around 350°F—before adding the fillets. This helps to avoid soggy or greasy fish.
Suggested Side Dishes
Alternative Ingredients
catfish - Substitute with tilapia: Tilapia has a mild flavor and similar texture, making it a good alternative for catfish in a po' boy sandwich.
cornmeal - Substitute with panko breadcrumbs: Panko breadcrumbs provide a similar crunchy texture when frying fish.
all-purpose flour - Substitute with whole wheat flour: Whole wheat flour can be used for a slightly nuttier flavor and added nutritional value.
cajun seasoning - Substitute with creole seasoning: Creole seasoning offers a similar blend of spices and can be used interchangeably with Cajun seasoning.
buttermilk - Substitute with plain yogurt: Plain yogurt can mimic the tangy flavor and thick consistency of buttermilk.
french bread - Substitute with ciabatta rolls: Ciabatta rolls have a similar texture and can hold up well to the fillings of a po' boy sandwich.
shredded lettuce - Substitute with shredded cabbage: Shredded cabbage provides a similar crunch and can add a slightly different flavor profile.
sliced tomato - Substitute with sliced cucumber: Sliced cucumber offers a refreshing crunch and can be a good alternative to tomatoes.
mayonnaise - Substitute with Greek yogurt: Greek yogurt can provide a creamy texture and tangy flavor similar to mayonnaise, with added health benefits.
Other Alternative Recipes Similar to This Dish
How to Store or Freeze This Dish
- Allow the catfish fillets to cool completely before storing. This prevents condensation, which can make the coating soggy.
- Wrap each catfish fillet individually in aluminum foil or plastic wrap to maintain their crispiness and prevent them from sticking together.
- Place the wrapped fillets in an airtight container or a resealable plastic bag. This helps to keep the catfish fresh and prevents any unwanted odors from seeping in.
- Store the container in the refrigerator if you plan to consume the catfish po boys within 2-3 days. For longer storage, place the container in the freezer.
- To freeze the french bread, wrap each bun individually in plastic wrap and then place them in a resealable plastic bag. This keeps the bread from drying out and maintains its texture.
- Store the lettuce and tomato separately in airtight containers in the refrigerator. This keeps them fresh and crisp until you're ready to assemble the sandwiches.
- Mayonnaise should be stored in its original container in the refrigerator. Make sure to use a clean utensil each time to avoid contamination.
- When ready to reheat, preheat your oven to 375°F (190°C). Place the catfish fillets on a baking sheet and heat for about 10-15 minutes, or until they are warmed through and crispy.
- If reheating from frozen, allow the catfish fillets to thaw in the refrigerator overnight before reheating in the oven.
- Toast the french bread in the oven for a few minutes to restore its crispiness before assembling the sandwiches.
- Assemble the catfish po boys with the reheated fillets, fresh lettuce, tomato, and a generous spread of mayonnaise on the toasted french bread.
How to Reheat Leftovers
Preheat your oven to 350°F (175°C). Place the catfish fillets on a baking sheet lined with parchment paper. Heat for about 10-15 minutes until they are crispy and heated through.
If you prefer a quicker method, use a toaster oven. Set it to 350°F (175°C) and reheat the catfish fillets for 8-10 minutes.
For the french bread, wrap it in aluminum foil and place it in the oven for about 10 minutes to warm it up without making it too crispy.
To reheat the lettuce and tomato, it's best to use fresh ingredients instead of reheating. However, if you must, place them in a microwave-safe dish and heat for 10-15 seconds to take the chill off.
For the mayonnaise, it's best to use fresh. If you need to reheat it, do so gently in a microwave-safe bowl for about 5-10 seconds, stirring in between to avoid separation.
Assemble your Catfish Po Boy with the reheated components and enjoy!
Best Tools for This Recipe
Mixing bowl: Use this to combine the cornmeal, flour, and Cajun seasoning.
Frying pan: Heat the oil in this to fry the catfish fillets.
Tongs: Use these to turn the catfish fillets while frying.
Paper towels: Place these on a plate to drain the excess oil from the fried catfish.
Knife: Slice the tomatoes with this.
Cutting board: Use this as a surface to slice the tomatoes and shred the lettuce.
Measuring cups: Measure out the cornmeal, flour, and buttermilk with these.
Whisk: Use this to mix the cornmeal, flour, and Cajun seasoning together.
Plate: Place the dredged catfish fillets on this before frying.
Spatula: Use this to help assemble the sandwiches.
Toaster or oven: Toast the French bread buns with this.
How to Save Time on Making This Recipe
Prep ingredients ahead: Measure and mix the cornmeal, flour, and cajun seasoning in advance. Store in an airtight container.
Use pre-sliced veggies: Buy pre-sliced lettuce and tomato to save chopping time.
Heat oil while prepping: Start heating the oil as you dredge the catfish fillets to save cooking time.
Toast bread in batches: Toast the french bread in the oven all at once instead of individually.
Assemble efficiently: Lay out all sandwich components (bread, lettuce, tomato, mayonnaise) for quick assembly.

Catfish Po Boy Recipe
Ingredients
Main Ingredients
- 4 fillets Catfish fresh
- 1 cup Cornmeal
- 1 cup All-purpose flour
- 1 teaspoon Cajun seasoning
- 1 cup Buttermilk
- 4 buns French bread split and toasted
- 1 cup Lettuce shredded
- 1 cup Tomato sliced
- 1 cup Mayonnaise
Instructions
- 1. Mix cornmeal, flour, and Cajun seasoning in a bowl.
- 2. Dip catfish fillets in buttermilk, then dredge in cornmeal mixture.
- 3. Heat oil in a frying pan over medium heat. Fry fillets until golden brown, about 3-4 minutes per side.
- 4. Drain on paper towels.
- 5. Assemble sandwiches with French bread, lettuce, tomato, and mayonnaise. Add fried catfish fillets.
Nutritional Value
Keywords
Suggested Appetizers and Desserts for This Recipe
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