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Southern Mustard Fried Flounder

Southern Mustard Fried Flounder is super tender and flaky, with a perfectly crisp breading. It is seasoned and fried to perfection. This dish is sure to satisfy your seafood cravings!

While you are here be sure to check out this Crab Stuffed Shrimp recipe too!

Why this is the best fried flounder recipe

Clean taste: flounder has a mild, delicate, and clean flavor that makes it a popular choice among seafood lovers. Its lean, white flesh has a subtle sweetness that pairs well with a variety of seasonings and cooking methods. 

Easy to prepare: all you have to do is season the fish, dip it in the wet batter and dry batter, and fry it in the vegetable oil or canola oil. It is that easy to cook! 

Full of flavor: once you add the seasonings to this fish, it has so much flavor. Flaky and tender, with that hint of saltiness from your seasonings. 

Ingredients you need for mustard fried flounder

For this mustard fried flounder you will need:

  • Flounder filets: it is easiest to buy the filets from your local grocers seafood department. The fish filets will already be cut and deboned. 
  • Cornmeal and flour: these are going to be the breading for your fried fish. 
  • Mustard: such an important ingredient because it is used as a binder for the breading. 
  • Seasonings: you will use bold flavorful seasonings for this fried fish. Including salt, pepper, and cayenne pepper for a little kick!

How to make fried fish

You’re going to start  by preheating your vegetable oil to 375° F. 

While the oil is heating up, make your dredging station. Whisk together the eggs and mustard in a bowl. Then in another shallow bowl or platter, combine the flour and seasoned cornmeal. 

Now you need to pay the flounder filets dry with a paper towel. Then season them with the salt, pepper, and cayenne pepper.

Dip the flounder filets in the egg and mustard mixture, allow the extra wet batter to drip off, and now dredge the fish filets in the cornmeal and flour. 

Gently place the fish filets in the oil and fry on each side for 3-5 minutes per side 

Once the fried flounder filets are golden brown, remove them from the oil and place them on a plate lined with paper towels to drain the excess grease. 

Difference between flounder and catfish

The flesh of flounder is lean and flaky, with a slightly sweet and nutty flavor. Flounder also has a delicate texture and can be easily overcooked, which is why it is often prepared in simple and light recipes.

Catfish has a stronger, more earthier flavor. This fish typically lives in freshwater environments like rivers, lakes, and ponds.

Both fried flounder and fried catfish take on the flavors that you add with the seasonings and batter. They are a great source of protein and omega-3 fatty acids as well.


What does flounder taste like?

The taste of Flounder is generally mild and delicate, which can be compared to other whitefish such as cod, haddock, or tilapia. 

What type of oil should you use to fry flounder?

Vegetable oil or canola oil are good choices for frying flounder.

What do you serve with fried fish?

Some great sides to could be serve with fried fish include tartar sauce or lemon wedges for flavoring, coleslaw, hush puppies or cornbread, macaroni and cheese, or French fries. 

fried flounder sitting over a bed or rice with a charred lemon wedge on the side

Southern Mustard Fried Flounder

Southern Mustard Fried Flounder is super tender and flaky, with a perfectly crisp breading. It is seasoned and fried to perfection. This dish is sure to satisfy your seafood cravings!
5 from 1 vote
Prep Time 7 minutes
Cook Time 10 minutes
Total Time 17 minutes
Course Main Course
Cuisine American
Servings 4 Filets
Calories 341 kcal


  • 4 Flounder filets 6 ounce Filets
  • 1/2 cup Yellow mustard
  • 2 large Eggs beaten
  • 1/2 cup Seasoned cornmeal (fish fry)
  • 1/4 cup flour
  • 1/4 teaspoon Salt
  • 1/4 teaspoon Black pepper
  • 1/4 teaspoon Cayenne pepper (optional but recommended


  • In a medium sized bowl whisk together your eggs and mustard. Rinse ; pat dry your fish fillets. Season them and add to your mustard ; egg mixture
  • In a separate bowl, combine your flour and seasoned corn meal. 
  • Remove the fish from the wet batter, allowing excess to drip off and place into flour/cornmeal mixture. Coat and allow excess dry batter to run off.
  • Fry in 375 degree oil for 5-7 minutes depending on the size of the fish if deep frying.If shallow frying, 2-3 minutes per side.
  • Once golden brown, remove and place on paper towel lined plate to drain.
  • Serve with hot sauce, tartar sauce or whatever you prefer. 
Keyword fish, fried fish, seafood

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        1. Absolutely! The cooking time may vary depending on the size of the fish. but you can prepare it in the same way. You could substitute with halibut for instance since that has a similar texture.

  1. On your recipe above. The ingredient list did not include flour. You mentioned cornmeal, would that be equal part flour? Going to make it Friday and want to mark sure I have all ingredients..

    1. Thank you so much for reaching out, and this is a great question! I did correct the ingredient list to include the amount of flour that you will need. I hope you enjoy this dish!

    1. Absolutely! I haven’t tried this specific recipe as oven fried but I would preheat your oven to 450 degrees F and put them in for 8-10 minutes. Check them and leave them in longer if needed but it should be delicious.

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