Every time I catch a whiff of that crispy fish frying, nostalgia washes over me like a wave. There’s something undeniably comforting about a Copycat McDonald’s Fish Sandwich with Homemade Tartar Sauce, bringing the taste of fast food right into your kitchen. This recipe not only recreates the comforting flavors we love but does it all with quick prep time. Imagine sitting down to a hearty dinner that feels indulgent while being crafted entirely by your own hands! Plus, the homemade tartar sauce elevates this dish with its fresh, zingy taste. It’s the perfect way to treat yourself or impress guests on a casual weeknight. Curious to know how to whip up this delicious creation? Let’s dive in!

Why is Homemade Better Than Fast Food?
Indulgence at Home: There’s nothing like the combination of a crispy fish filet and soft, warm buns made in your own kitchen.
Fresh and Flavorful: The homemade tartar sauce bursts with flavor, thanks to fresh ingredients like dill relish and lemon juice.
Speedy Preparation: This recipe comes together in no time, making it perfect for busy weeknights when fast food seems tempting.
Versatile Enjoyment: Customize with lettuce, tomato, or even swap the fish for chicken to suit your taste.
Crowd-Pleasing Charm: Serve these sandwiches at your next gathering to wow friends and family with a nostalgic favorite reimagined! For more delicious seafood ideas, try these Fish Tacos Cilantro!
Copycat McDonald’s Tartar Sauce Ingredients
Homemade tartar sauce takes your fish sandwich to the next level!
For the Tartar Sauce
- Vlasic Dill Pickle Relish – Adds a sweet and tangy flavor; substitute with any sweet relish or finely chopped dill pickles if needed.
- Capers (12, minced) – Provides a briny, sharp flavor; optional to omit if unavailable.
- Dried Minced Onion (2 teaspoons) – Adds savory depth; fresh onion can be used, but adjust the quantity to taste.
- Milk (2 teaspoons) – Helps to thin out the tartar sauce for pourable consistency; no substitution recommended.
- Dried Parsley Flakes (1 teaspoon) – Adds flavor and a touch of color; substitute with fresh parsley if desired (use more).
- Lemon Juice (1/2 teaspoon) – Enhances the tartness of the sauce; fresh lemon is preferred for better flavor.
- Granulated Sugar (1/8 teaspoon) – Balances the tartness; can be skipped for a less sweet taste.
- Mayonnaise (1/2 cup) – Forms the base of the tartar sauce; full-fat mayonnaise is best for rich flavor.
For the Sandwich
- White Hamburger Style Buns (6) – Basis for the sandwich; any soft white or whole wheat buns will work.
- Van de Kamp Breaded Fish for Sandwiches (6) – Provides crispiness and flavor; substitute with other frozen or homemade fish fillets if preferred.
- American Cheese Slices (6) – Melts beautifully over the fish; cheddar or a dairy-free alternative can replace it if desired.
Make this Copycat McDonald’s Tartar Sauce & Fish Sandwich tonight! Your taste buds will thank you.
Step‑by‑Step Instructions for Copycat McDonald’s Tartar Sauce & Fish Sandwich
Step 1: Prepare the Tartar Sauce
In a medium bowl, combine the mayonnaise, dill pickle relish, minced capers, dried minced onion, milk, parsley flakes, lemon juice, and sugar. Mix all the ingredients thoroughly until smooth, ensuring that the flavors blend well. Cover the bowl with plastic wrap and refrigerate for at least one hour to allow the tartar sauce to develop its zesty flavors.
Step 2: Cook the Fish
Preheat your oven according to the package instructions for the Van de Kamp breaded fish fillets, typically around 425°F (220°C). Arrange the fish fillets on a baking sheet and bake for the recommended time. About two minutes before they finish, place a slice of American cheese on each patty to melt, ensuring it becomes gooey and delicious.
Step 3: Steam the Buns
While the fish is baking, prepare to steam the hamburger buns. Place the buns in a plastic bag with a damp paper towel, ensuring not to seal the bag. Microwave for 30 seconds, checking that they soften and become warm, creating the perfect fluffy base for your sandwich.
Step 4: Assemble the Sandwich
Once the fish is done and the cheese is melted, it’s time to build your Copycat McDonald’s Fish Sandwich. Take the bottom half of each steamed bun and place a crispy fish filet with melted cheese on top. Add a generous spoonful of the homemade tartar sauce, then crown it with the top bun, sealing in all those wonderful flavors.
Step 5: Serve and Enjoy
Serve the fish sandwiches immediately, while they are warm and inviting. Pair them with your favorite side, like crinkle-cut fries, to bring the fast-food experience home. Each bite will be a delightful combination of crispy fish, creamy tartar sauce, and soft bun, just like you enjoy at McDonald’s!

Copycat McDonald’s Tartar Sauce Variations
Feel free to explore these tasty twists on your homemade tartar sauce for a flavor experience that’s uniquely yours!
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Herbed Delight:
Add chopped fresh dill or chives for an aromatic lift that brightens every bite. -
Spicy Kick:
Stir in a dash of hot sauce or your favorite chili flakes for an extra layer of heat that complements the fish perfectly. -
Creamy Avocado:
Blend in ripe avocado for a rich, creamy sauce that adds a silky texture and a hint of earthiness. -
Zesty Citrus:
Replace lemon juice with lime juice for a fun twist that enhances the tartness and adds a refreshing touch. -
Capers Optional:
If you prefer milder flavors, simply omit the capers while still keeping the sauce deliciously tangy. -
Sweet & Smoky:
Add a bit of smoked paprika and a teaspoon of honey to create a smoky-sweet flavor profile that’s delightful. -
Crunchy Pickle Forward:
Use dill pickles instead of relish for added texture and a more pronounced pickle flavor in each bite. -
Alternative Cheeses:
Swap out the American cheese for a pepper jack to give a cheesy, spicy ambiance to the dish, enhancing the overall experience.
For more ideas on how you can personalize your meal, why not try serving your fish sandwiches alongside crispy crinkle-cut fries, making it a fun take on fast food! If you’re in the mood for a smoky flavor, you might enjoy a great Chicken Caesar Sandwich as well. Enjoy the journey of crafting your own signature flavors!
What to Serve with Copycat McDonald’s Fish Sandwich
Every great meal deserves delightful companions that enhance the flavors and textures on your plate.
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Crispy Crinkle-Cut Fries: Their golden crunch pairs perfectly with the tender fish sandwich, offering a satisfying contrast that’s classic and comforting. Dip them in your leftover tartar sauce for an irresistible combo.
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Fresh Garden Salad: A mix of crisp greens, cherry tomatoes, and cucumbers adds a refreshing brightness that balances the richness of the fish and tartar sauce. Drizzle with a light vinaigrette to keep it light and zesty.
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Coleslaw: Creamy coleslaw provides a tangy crunch that complements the softness of the bun and the crispy fish. Its texture and flavor blend perfectly, bringing a delightful crunch to each bite.
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Onion Rings: Their crispy outer layer and soft interior offer a charming contrast to your sandwich. Serve with a side of spicy ketchup or dipping sauce for an indulgent treat.
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Sweet Potato Wedges: Their natural sweetness and soft texture make them a great alternative to regular fries. They not only add color to your plate but also a delicious flavor contrast.
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Lemonade or Iced Tea: Refreshing beverages like lemonade or iced tea cleanse the palate with every sip. Their bright flavors, whether sweet or slightly tart, perfectly complement the fish’s richness.
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Chocolate Chip Cookies: For a sweet finish, serve up some warm chocolate chip cookies. Their gooey, soft texture will leave your taste buds dancing happily after the savory sandwich.
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Fruit Salad: A vibrant fruit salad brings a burst of freshness and natural sweetness that contrasts beautifully with the savory ingredients. It’s a light and refreshing way to end your meal.
This feast isn’t just a dinner; it’s a delightful dining experience that showcases the joy of homemade comfort food and treats!
Expert Tips for Copycat McDonald’s Tartar Sauce & Fish Sandwich
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Chill the Sauce: Make sure to refrigerate the tartar sauce for at least one hour. This allows the flavors to meld beautifully, enhancing its freshness.
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Crispy Fish: Cook the fish until it’s golden brown and crispy. A common mistake is undercooking, leading to a soggy texture that doesn’t do the sandwich justice.
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Perfectly Steamed Buns: When steaming buns in the microwave, keep them covered with a damp paper towel and avoid sealing the bag to retain moisture for that soft texture.
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Flavor Boosting Variations: Feel free to add minced fresh herbs like dill or chives to the tartar sauce for an extra pop of flavor, or consider swapping the fish for chicken for a delightful twist.
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Assembly Order Matters: Layer your sandwich starting with the fish, then cheese, tartar sauce, and finally the top bun. This locks everything in and helps prevent sogginess, ensuring your Copycat McDonald’s Fish Sandwich stays intact until the last bite!
Storage Tips for Copycat McDonald’s Tartar Sauce & Fish Sandwich
Fridge: Store any leftover Copycat McDonald’s tartar sauce in an airtight container in the refrigerator for up to one week, ensuring you keep it fresh and ready for your next craving.
Freezer: If you have leftover fish fillets, wrap them tightly in plastic wrap and then in aluminum foil to prevent freezer burn. They can be frozen for up to 3 months; reheat in the oven until crispy.
Room Temperature: The assembled sandwiches are best enjoyed immediately for optimal flavor and texture. If left out, consume them within 2 hours to ensure food safety.
Reheating: To reheat the sandwiches, place them in a toaster oven or conventional oven at 350°F (175°C) for about 10 minutes, just until warmed through and the bread is slightly crispy.
Make Ahead Options
These Copycat McDonald’s Fish Sandwiches are perfect for meal prep enthusiasts! You can prepare the homemade tartar sauce up to 3 days in advance; simply combine all ingredients and refrigerate in an airtight container, allowing the flavors to meld beautifully. The breaded fish can also be cooked ahead of time and stored in an airtight container in the refrigerator for up to 24 hours. When ready to serve, simply reheat the fish in the oven to maintain its crispiness and steam the buns just before assembly for that soft, fluffy texture. This way, you’ll enjoy a hearty meal with minimal effort, delivering delicious results that are just as satisfying as fast food!

Copycat McDonald’s Fish Sandwich with Homemade Tartar Sauce Recipe FAQs
How do I select the best fish for my sandwich?
Absolutely! When choosing fish fillets, look for those that are firm and opaque. Fresh fish should have a mild scent, while frozen fillets should be well-sealed without any signs of freezer burn. If using breaded fish, check that the breading looks crispy and golden when cooked.
How should I store leftover tartar sauce?
Very simple! Store any leftover Copycat McDonald’s tartar sauce in an airtight container in the refrigerator. It will stay fresh for up to one week. Just give it a stir before using, as some ingredients might settle. I often make a double batch to enjoy with other dishes throughout the week!
Can I freeze leftover fish sandwiches?
Of course! If you have extra fish fillets, wrap them tightly in plastic wrap, then foil, and freeze. They can be stored for up to 3 months. To reheat, place them in the oven at 350°F (175°C) for about 10–15 minutes until they are heated through and crispy.
What should I do if my tartar sauce is too runny?
No problem! If your tartar sauce turns out too thin, you can thicken it by either adding a bit more mayonnaise or incorporating some finely chopped pickles. Mix thoroughly and adjust based on your desired consistency. Taste testing is key here—don’t hesitate to tweak until it’s just right!
Can I make this recipe gluten-free?
Yes, indeed! To make your Copycat McDonald’s Fish Sandwich gluten-free, simply use gluten-free hamburger buns and ensure that your fish fillets are labeled as gluten-free. Many brands offer amazing alternatives that taste wonderful without sacrificing texture!
Is there a way to make this recipe healthier?
Definitely! To lighten up the Copycat McDonald’s Fish Sandwich, consider using whole grain buns for added fiber and nutrients. You can also choose baked fish fillets instead of fried and opt for low-fat mayonnaise in your tartar sauce. Adding lettuce and tomato will provide extra crunch and freshness as well!

Savor Homemade Copycat McDonald’s Tartar Sauce & Fish Sandwich
Ingredients
Equipment
Method
- In a medium bowl, combine the mayonnaise, dill pickle relish, minced capers, dried minced onion, milk, parsley flakes, lemon juice, and sugar. Mix all the ingredients thoroughly until smooth, then refrigerate for at least one hour.
- Preheat your oven to 425°F (220°C). Arrange the fish fillets on a baking sheet and bake for the recommended time. About two minutes before they finish, place a slice of American cheese on each patty to melt.
- Steam the hamburger buns by placing them in a plastic bag with a damp paper towel and microwaving for 30 seconds.
- Assemble the sandwich by taking the bottom half of each steamed bun, adding a fish filet with melted cheese, a spoonful of tartar sauce, and topping it with the top bun.
- Serve the sandwiches immediately while warm, pairing with your favorite side.

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