Ingredients
For the Tartar Sauce (makes about 1 cup):
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- Mayonnaise (3/4 cup / 180ml): Use a good quality, full-fat mayonnaise for the best flavor and creamy texture.
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- Sweet Pickle Relish (1/4 cup / 60ml): This provides the signature sweetness and tang. Drain any excess liquid.
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- Fresh Lemon Juice (1 teaspoon / 5ml): Adds brightness and cuts through the richness of the mayo. Freshly squeezed is best.
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- Finely Minced White Onion (1 tablespoon / 15ml) or Onion Powder (1/4 teaspoon / 1.25ml): For a subtle oniony bite. Fresh minced onion provides better texture, but onion powder is a quick alternative.
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- Salt (1/4 teaspoon / 1.25ml, or to taste): Enhances all the flavors.
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- Freshly Ground Black Pepper (1/8 teaspoon / 0.6ml, or to taste): Adds a hint of spice.
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- Optional: Pinch of Sugar (if your relish isn’t very sweet or you prefer a sweeter sauce)
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- Optional: Minced Dill or Parsley (1 teaspoon / 5ml for fresh herbaceous notes)
For the Fish Fillets (makes 4 sandwiches):
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- Cod or Pollock Fillets (4, about 4-5 oz / 115-140g each, skinless and boneless): These are the traditional choices, offering a mild flavor and flaky texture. Aim for fillets about ½-¾ inch thick. You can cut larger fillets into roughly square or rectangular portions.
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- All-Purpose Flour (1/2 cup / 60g): For the initial dredge, helping the egg wash adhere.
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- Salt (1 teaspoon / 5ml, divided): For seasoning the fish and the breading.
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- Black Pepper (1/2 teaspoon / 2.5ml, divided): For seasoning.
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- Large Eggs (2): For the egg wash.
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- Milk or Water (1 tablespoon / 15ml): To thin the egg wash slightly.
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- Panko Breadcrumbs (1 1/2 cups / 120g): For an extra crispy coating. Fine plain breadcrumbs can be used for a more traditional, less “shatteringly crisp” texture if preferred.
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- Garlic Powder (1/2 teaspoon / 2.5ml, optional, for breading): Adds a subtle savory note.
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- Neutral Frying Oil (3-4 cups / 720-960ml, like canola, vegetable, or peanut oil): Enough for about 1-1.5 inches depth in your pan.
For Assembling the Sandwiches:
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- Plain Soft White Hamburger Buns (4): The softer and simpler, the better. Avoid brioche or seeded buns for authenticity.
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- American Cheese Slices (2, cut in half to make 4 half-slices): This is key to the classic Filet-O-Fish.
Instructions
1. Prepare the Tartar Sauce (Ideally, 1 hour ahead or overnight):
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- In a small bowl, combine the mayonnaise, sweet pickle relish, fresh lemon juice, and finely minced white onion (or onion powder).
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- Season with salt and freshly ground black pepper. If using, add the optional sugar or minced dill/parsley.
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- Stir well until all ingredients are thoroughly combined.
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- Taste and adjust seasonings if necessary. You might want a little more lemon juice for tang or salt for overall flavor.
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- Cover the bowl with plastic wrap and refrigerate for at least 30 minutes (preferably 1 hour or even overnight) to allow the flavors to meld. This step significantly improves the taste.
2. Prepare the Fish Fillets:
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- Pat the cod or pollock fillets completely dry with paper towels. This is crucial for a crispy coating.
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- If your fillets are large, cut them into portions roughly the size of your buns, aiming for a somewhat square or rectangular shape.
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- Season the fish fillets lightly on both sides with about 1/2 teaspoon of salt and 1/4 teaspoon of black pepper.
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- Set up your breading station:
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- Plate 1: Combine the all-purpose flour with the remaining 1/2 teaspoon of salt, 1/4 teaspoon of black pepper, and optional garlic powder. Whisk to mix.
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- Bowl 2: In a shallow bowl, whisk the eggs with the tablespoon of milk or water until smooth.
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- Plate 3: Spread the Panko breadcrumbs evenly on a large plate or baking sheet.
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- Set up your breading station:
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- Dredge each fish fillet:
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- First, coat a fish fillet lightly in the seasoned flour mixture, shaking off any excess.
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- Next, dip the floured fillet into the egg wash, ensuring it’s fully coated, and allow any excess egg to drip off.
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- Finally, press the egg-coated fillet firmly into the Panko breadcrumbs, ensuring all sides are generously and evenly coated. Gently press the breadcrumbs onto the fish to help them adhere.
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- Dredge each fish fillet:
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- Place the breaded fillets on a clean plate or wire rack. You can let them sit for 10-15 minutes at room temperature; this can help the breading set.
3. Fry the Fish Fillets:
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- In a large, heavy-bottomed skillet or Dutch oven, pour in enough frying oil to reach a depth of about 1-1.5 inches.
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- Heat the oil over medium-high heat until it reaches 350-375°F (175-190°C). Use a cooking thermometer for accuracy. If you don’t have one, the oil is ready when a pinch of breadcrumbs sizzles and turns golden brown in about 30-45 seconds.
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- Carefully place 1 or 2 breaded fish fillets into the hot oil, being sure not to overcrowd the pan (this lowers the oil temperature and results in greasy fish).
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- Fry for about 3-5 minutes per side, or until the breading is deep golden brown and crispy, and the fish is cooked through (internal temperature of 145°F / 63°C). The exact time will depend on the thickness of your fillets.
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- Once cooked, use a slotted spoon or fish spatula to carefully remove the fillets from the oil. Let any excess oil drip off.
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- Transfer the fried fish to a wire rack set over a baking sheet to drain. Do not place them on paper towels directly, as this can make the bottom side soggy. Sprinkle immediately with a tiny pinch of salt, if desired.
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- Repeat with the remaining fillets, ensuring the oil temperature returns to the target range between batches.
4. Steam the Buns:
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- The signature soft, warm bun is key! You have a couple of options:
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- Microwave Method: Lightly dampen a paper towel. Wrap one or two buns in the damp paper towel and microwave on high for 10-15 seconds, or until soft and warm. Be careful not to overdo it, or they can become tough.
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- Steamer Basket Method: Place a steamer basket over a pot with about an inch of simmering water. Place the buns in the basket, cover, and steam for about 30-60 seconds, or until soft and warm.
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- The signature soft, warm bun is key! You have a couple of options:
5. Assemble Your Copycat Filet-O-Fish Sandwiches:
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- Spread a generous spoonful (about 1-2 tablespoons) of your homemade tartar sauce on the bottom half of each steamed bun.
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- Place a crispy fried fish fillet on top of the tartar sauce.
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- Top the hot fish fillet with one half-slice of American cheese. The heat from the fish will help it melt slightly.
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- Place the top half of the steamed bun over the cheese.
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- Serve immediately and enjoy your delicious homemade Filet-O-Fish!
Nutrition
- Serving Size: one normal portion
- Calories: 450-550