The tantalizing scent of fried fish wafted through my kitchen, instantly transporting me back to carefree, sunny days by the beach. Today, I’m thrilled to share my version of the beloved Filet-O-Fish Copycat sandwich—a dish that lets you recreate your favorite fast-food indulgence right at home! With a crunchy, golden-brown exterior that yields to flaky, tender fish, this sandwich promises to be a delightful and quick meal for busy weeknights. But that’s not all! Not only is it incredibly easy to whip up, but it’s also customizable to your taste. Whether you prefer a little extra zing in your sauce or want to switch up the fish, this recipe is versatile enough to keep everyone satisfied. Have you ever thought about how easily you can transform a childhood favorite into a homemade masterpiece? Let’s dive in!

Why Make This Filet-O-Fish?
Crispiness Awaits: The irresistible crunch from the batter creates a satisfying bite that rivals your favorite fast-food sandwiches.
Fresh Ingredients: Made with wholesome, fresh ingredients, this dish ensures you know exactly what’s going into your meal.
Quick and Easy: Perfect for weeknights, this recipe can be whipped up in under 30 minutes, making it an ideal choice for busy evenings.
Customizable Flavor: Enjoy tweaking the sauce or trying different fish varieties—this recipe encourages your culinary creativity!
Crowd-Pleasing Delight: Whether for family dinner or a gathering, this sandwich is sure to impress. Serve it alongside some homemade coleslaw for a touch of elegance, or check out other easy ideas in our dinner recipes section for more delicious options!
Filet O Fish Copycat Ingredients
For the Fish
• White Fish – 1 lb of pollock, cod, or whiting; provides the main protein element—choose fresh for best results.
• Salt – 1 tbsp; enhances flavors of the fish and is essential for seasoning.
• Flour – ¼ cup + 1.5 cups all-purpose flour; forms the crust, with the second batch used for dredging.
• Cornstarch – ¼ cup; helps create a crispier batter—no substitute necessary.
• Egg – 1 large; binds ingredients in the batter—use a vegan egg substitute if needed.
• Paprika – 2 tbsp; adds color and a subtle flavor, can use smoked paprika for a deeper taste.
• Old-Bay Seasoning – 1 tbsp; classic seafood seasoning that enhances the overall flavor—substitute with your choice of spice if necessary.
• Chili Powder – 1 tbsp; contributes a hint of heat—optional depending on spice tolerance.
• Garlic Powder – 2 tsp; imparts aromatic flavor—fresh garlic can work in a pinch but alter measurements.
• Onion Powder – 2 tsp; adds depth to the batter—optional if fresh onion is preferred.
• Black Pepper – 1 tsp; adjusts the peppery taste according to preference.
• Beer (Ale, Pilsner, Lager) – 14 oz; used for a crispy batter—sparkling water can substitute for non-alcoholic options.
For the Sauce
• Mayonnaise – 1 cup; forms the base of the sauce—can use Greek yogurt for a lighter version.
• Diced Pickles – ¼ cup; provides crunch and acidity in the sauce—relish can be a substitute.
• Pickle Juice – 1 tsp; enhances tanginess in the sauce—omit if using more pickles.
• Lemon Juice – 1 tbsp (freshly squeezed); brightens the sauce—bottled can substitute but fresh is best.
• Dill – 2 tbsp (chopped); adds flavor—dried dill can substitute but remember to use less.
• Capers – ¼ cup; brings briny contrast to the sauce—omit if unavailable.
• Salt & Pepper (for sauce) – 1 tsp each; essential for seasoning—adjust according to taste.
• Lemon Zest – From 1 lemon; enhances freshness—can substitute with more lemon juice.
• Honey – 1 tsp (optional); adds a touch of sweetness—maple syrup can be a substitute.
For Assembling
• Potato Buns – 4; the sandwich base—any soft bun can work.
• Cheese (American or Cheddar) – 4 slices; melts beautifully over fish—can omit for a dairy-free option.
• Vegetable Oil – 6 cups for frying; crucial for achieving the perfect fry—can use canola or peanut oil.
Step‑by‑Step Instructions for Crispy Copycat Filet-O-Fish Sandwich
Step 1: Prepare the Sauce
In a medium bowl, mix together 1 cup of mayonnaise, ¼ cup diced pickles, 1 tsp pickle juice, 1 tbsp freshly squeezed lemon juice, 2 tbsp chopped dill, ¼ cup capers, and a pinch of salt and pepper. Stir until well combined, then set aside. This tangy sauce will enhance your Filet-O-Fish Copycat sandwich with creamy and bright flavors.
Step 2: Make the Batter
In a large mixing bowl, whisk together ¼ cup flour, ¼ cup cornstarch, 2 tbsp paprika, 1 tbsp Old Bay seasoning, 1 tbsp chili powder, 2 tsp garlic powder, 2 tsp onion powder, and 1 tsp salt. Gradually add 1 large egg and 14 oz of beer while mixing until a smooth batter forms. This batter will give your fish a deliciously crispy coating.
Step 3: Prep the Fish
Take 1 lb of your preferred white fish fillets, such as cod or pollock, and pat them dry with paper towels. Sprinkle 1 tbsp of salt over both sides to season. Then, cut the fillets into portions that fit your buns. Having well-seasoned fish is essential for achieving the best flavor in your Filet-O-Fish Copycat sandwich.
Step 4: Heat the Oil
In a deep skillet or heavy pot, heat about 6 cups of vegetable oil over medium-high heat until it reaches a temperature of 375°F. Use a thermometer to monitor the oil temperature closely. Properly heated oil ensures your fish will fry to a beautiful golden-brown, with a crispy exterior that is simply irresistible.
Step 5: Fry the Fish
Carefully dredge each piece of fish in the remaining 1.5 cups of flour, shaking off excess flour. Dip the fish into the batter and gently place it in the hot oil. Fry the fish for about 3 to 4 minutes per side, or until golden brown and cooked through. Use a slotted spoon to transfer the fried fish to a plate lined with paper towels to drain excess oil.
Step 6: Toast the Buns
Take your 4 potato buns and place a slice of cheese on the bottom of each bun. In a skillet, toast the buns over medium heat until the cheese melts and the buns are slightly crispy—this should take about 2 to 3 minutes. The melted cheese will create a delightful layer to your Crispy Copycat Filet-O-Fish sandwich, enhancing the overall experience.
Step 7: Assemble the Sandwich
Spread a generous amount of the prepared sauce on the top half of each bun. Place a crispy fried fish filet on top of the melted cheese in the bottom bun. Add any additional toppings, such as lettuce and tomato, if desired, then close the sandwich with the top bun. Your delicious Filet-O-Fish Copycat sandwich is now ready to serve!

How to Store and Freeze Filet O Fish Copycat
Fridge: Store assembled sandwiches in an airtight container for up to 2 days. If possible, keep the sauce separate to maintain crispiness.
Freezer: Freeze fried fish filets individually on a baking sheet before transferring to an airtight bag. They can be frozen for up to 3 months for the best quality.
Reheating: To reheat, place fish in the oven at 375°F for about 10-15 minutes, or until warmed through and crispy. Avoid microwaving, as it may make the fish soggy.
Make-Ahead Tips: If preparing ahead, store each component (batter, fish, sauce, buns) separately until ready to assemble for the freshest flavor in your Filet O Fish Copycat sandwich.
Make Ahead Options
These Crispy Copycat Filet-O-Fish Sandwiches are perfect for meal prep aficionados! You can prepare the sauce and batter up to 3 days in advance. Store the sauce in an airtight container in the refrigerator and keep the batter in a separate bowl, covered tightly. The fish can be prepped by cutting it into portions and seasoning it with salt up to 24 hours ahead; just keep it wrapped tightly in the fridge to maintain freshness. When you’re ready to serve, simply fry the fish until golden brown, toast the buns, and assemble your sandwiches. This way, you can enjoy homemade flavors with minimal effort during your busy weeknights!
Variations & Substitutions for Filet-O-Fish Copycat
Feel free to get creative with your Filet-O-Fish Copycat! These flavorful twists will elevate your sandwich experience.
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Different Fish: Switch up your filet! Use haddock, tilapia, or even shrimp for a unique take on this classic.
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Dairy-Free: Replace the mayonnaise with avocado or a vegan mayo for a creamy, dairy-free option. The buttery taste of avocado brings a delightful creaminess.
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Whole Wheat Buns: Opt for whole wheat or gluten-free buns to add more fiber and a nutty flavor. It’s a heartier choice that’s perfect for a satisfying meal.
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Extra Spice: If you’re craving heat, add some cayenne pepper to the batter or a splash of hot sauce to the sauce. This fiery addition will take your sandwich to the next level.
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Herb-Infused Sauce: For a fresh twist, mix in some chopped fresh herbs like parsley or cilantro into the sauce. It enhances the flavor profile beautifully.
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Crispy Topping: Consider adding panko breadcrumbs to the batter for an extra crunch that makes your sandwich irresistible. They add that perfect satisfying bite!
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Capers Omission: Don’t have capers? Simply substitute with green olives for a briny kick that maintains the sauce’s flavor.
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Flavored Cheese: Instead of American or cheddar, try pepper jack cheese for a cheesy kick. Melted pepper jack brings both creaminess and a bit of heat to your sandwich.
These variations let you tailor your Filet-O-Fish Copycat to fit your personal taste, making every bite memorable. And for even more inspiration or easy dinner ideas, check out our dinner recipes page!
What to Serve with Crispy Copycat Filet-O-Fish Sandwich
As you craft the perfect meal around this delightful sandwich, consider these complementary dishes that enhance the overall dining experience.
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Crispy French Fries:
Golden, salty fries provide the classic fast-food vibe, balancing the sandwich’s crunch with comforting starchy goodness. -
Light Coleslaw:
Refreshing and tangy, coleslaw adds a delightful crunch and will cleanse your palate between bites, making every mouthful enjoyable. -
Zesty Tartar Sauce:
Enhance the seafood flavor with a side of creamy tartar sauce; it gives a delightful extra layer of texture and taste. -
Homemade Potato Chips:
These crispy delights can be seasoned to your liking, from classic sea salt to spicy paprika, emphasizing the flavor profile of the sandwich. -
Garden Salad:
A simple mix of vibrant greens, cherry tomatoes, and cucumbers brings a refreshing contrast, brightening your meal. -
Beer-Battered Onion Rings:
The crunch of onion rings complements the fish’s flavor perfectly, and their rich taste adds a heartiness to your dining table. -
Sparkling Lemonade:
This light and refreshing drink is a perfect pairing; it balances the richness of the fried fish with a touch of zest and sweetness. -
Chocolate Milkshake:
For dessert, indulge in a creamy milkshake—it’s a sweet treat that rounds off the meal and recalls those nostalgic diner experiences.
Expert Tips for the Best Filet O Fish Copycat
- Oil Temperature: Keep the oil at 375°F for that perfect fry; too low makes the fish greasy, while too high might burn your batter.
- Fish Freshness: Always opt for fresh fish fillets; frozen fish can result in a less appealing texture and flavor.
- Batter Consistency: If your batter turns out too thick, add a splash more beer or sparkling water gradually to achieve a smoother coating.
- Season Generously: Don’t be shy with seasoning your fish; a well-seasoned filet contributes significantly to the overall flavor of your Filet O Fish Copycat sandwich.
- Toasting Buns: A quick toast on the buns with melted cheese enriches your sandwich with extra layers of flavor and texture.
- Serve Immediately: Enjoy the sandwiches right after assembling for the best taste; they tend to lose their crispy texture if left too long.

Filet O Fish Copycat Recipe FAQs
How do I choose the right fish for the Filet-O-Fish sandwich?
Absolutely! For the best results, opt for fresh white fish like pollock, cod, or whiting. Look for fillets that have a clean smell, firm texture, and no dark spots. Fresh fish will ensure your sandwich has that flaky, tender quality that you love.
What is the best way to store leftover Filet-O-Fish sandwiches?
To keep your leftovers fresh, store any assembled sandwiches in an airtight container in the refrigerator for up to 2 days. It’s best to keep the sauce separate until just before serving to maintain that delightful crispiness you want in your sandwich.
Can I freeze the fried fish for future use?
Yes, you can! First, freeze the fried fish filets individually on a baking sheet for about 1 to 2 hours until they’re solid. After that, transfer them to an airtight freezer bag. They’ll keep for up to 3 months. When you’re ready to enjoy, simply reheat in the oven at 375°F for 10-15 minutes until they’re warm and crispy again.
What if my batter is too thick when making the Filet-O-Fish Copycat?
No worries if your batter is thick! Just gradually add a splash of beer or sparkling water until you reach a smooth coating consistency. The goal is to have a light, fluffy batter that will crisp up beautifully during frying. Remember to mix gently to avoid overworking the batter.
Are there any dietary considerations I should pay attention to?
Certainly! This recipe contains gluten from flour and can be modified for dairy-free diets by omitting cheese or using dairy-free substitutes. For allergies, be cautious with ingredients like egg, mayonnaise, and capers. If you have pets, avoid sharing the fried fish or any sauce, as some ingredients, like onion powder, can be harmful to them.
How can I customize the flavor of my Filet-O-Fish Copycat sandwich?
The more the merrier when it comes to flavors! You can tweak the sauce by adding a bit more lemon juice for tang or even a splash of hot sauce for heat. Experimenting with different types of fish, like tilapia or haddock, will also lend unique flavors to your sandwich. Don’t hesitate to get creative!

Irresistible Filet O Fish Copycat: Crispy and Homemade
Ingredients
Equipment
Method
- In a medium bowl, mix together 1 cup of mayonnaise, ¼ cup diced pickles, 1 tsp pickle juice, 1 tbsp freshly squeezed lemon juice, 2 tbsp chopped dill, ¼ cup capers, and a pinch of salt and pepper. Stir until well combined, then set aside.
- In a large mixing bowl, whisk together ¼ cup flour, ¼ cup cornstarch, 2 tbsp paprika, 1 tbsp Old Bay seasoning, 1 tbsp chili powder, 2 tsp garlic powder, 2 tsp onion powder, and 1 tsp salt. Gradually add 1 large egg and 14 oz of beer while mixing until a smooth batter forms.
- Take 1 lb of your preferred white fish fillets, and pat them dry with paper towels. Sprinkle 1 tbsp of salt over both sides to season and cut the fillets into portions.
- In a deep skillet or heavy pot, heat about 6 cups of vegetable oil over medium-high heat until it reaches a temperature of 375°F.
- Carefully dredge each piece of fish in the remaining 1.5 cups of flour, then dip into the batter and gently place it in the hot oil. Fry for about 3 to 4 minutes per side until golden brown.
- Take your 4 potato buns and place a slice of cheese on the bottom of each bun. Toast the buns over medium heat until the cheese melts and the buns are slightly crispy.
- Spread a generous amount of the prepared sauce on the top half of each bun. Place a crispy fried fish filet on top of the melted cheese, add any additional toppings, then close the sandwich.

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