If you plan to serve fried fish or any crunchy seafood, Long John Silver’s Tartar Sauce is an easy, flavorful match you should try. Creamy, tangy, and slightly sweet, it elevates simple fried seafood into a satisfying meal.
Fans of Long John Silver’s will recognize this sauce: a mayonnaise-based condiment brightened by pickle relish and lemon, with subtle savory notes from dill and garlic. This copycat version reproduces that familiar profile while keeping the recipe simple enough for home cooks.
This recipe differs slightly from other tartar sauce variations. Instead of Dijon mustard or fresh chopped onion, it uses dried dill, onion powder, and garlic powder to achieve a balanced, shelf-stable flavor that’s easy to mix in. The result is a smooth, versatile sauce perfect for dipping or spreading.

Table of Contents
What is Long John Silver’s Tartar Sauce?
Long John Silver’s Tartar Sauce is a creamy condiment commonly served with fried seafood at the restaurant. Its base is mayonnaise, combined with sweet pickle relish, lemon juice, and seasonings such as dill and garlic powder. The relish adds a touch of sweetness and texture, while lemon brightens the overall flavor. This home version recreates those essential characteristics in minutes, making it a convenient addition to any seafood dinner or fried snack.
Ingredients
- 1 cup mayonnaise
- 2 tablespoons sweet pickle relish
- 1 tablespoon lemon juice (freshly squeezed recommended)
- 1 tablespoon chopped fresh parsley (optional)
- 1/2 teaspoon dried dill weed
- 1/4 teaspoon onion powder
- 1/4 teaspoon garlic powder
- Salt and pepper, to taste

Kitchen Equipment Needed
- Medium mixing bowl
- Measuring spoons
- Whisk or spoon for mixing
- Container with a tight-fitting lid or plastic wrap for chilling
How to Make Long John Silver’s Tartar Sauce
Step 1:
In a medium bowl, combine the mayonnaise, sweet pickle relish, and lemon juice. Whisk until smooth and evenly blended.
Step 2:
Add the chopped parsley if using, then sprinkle in the dried dill weed, onion powder, and garlic powder. Stir until the spices are fully incorporated.
Step 3:
Season with salt and pepper to taste. Mix again and adjust the seasonings—add more lemon for brightness, a pinch of sugar if you want a sweeter balance, or extra relish for texture.
Step 4:
Cover the bowl and refrigerate for at least 30 minutes to allow the flavors to meld. Longer chilling—up to a few hours—will deepen the taste.
Step 5:
Give the sauce a final stir before serving. Store any leftovers in a sealed container in the refrigerator.

Tips
- Use freshly squeezed lemon juice for the cleanest, brightest flavor.
- Try different relishes—dill or spicy relish will change the profile subtly.
- If you prefer a slightly sweeter sauce, add a small pinch of sugar and taste as you go.
- For extra tang and briny depth, fold in a few chopped capers.
How to Store Leftovers
Transfer the sauce to a container with a tight-fitting lid and refrigerate. Properly stored, it will keep well for up to one week. Stir before serving, as ingredients may separate slightly.

What to Eat with Long John Silver’s Tartar Sauce
Though classic with fried fish and shrimp, this tartar sauce pairs well with many fried and crispy foods. Try it with fries, onion rings, fried chicken tenders, fried pickles, or as a spread on sandwiches and burgers. It also works as a dip for raw vegetable sticks like carrots and celery.
FAQ
Can I use low-fat mayonnaise?
Yes. Low-fat or vegan mayonnaise can be used, though the texture and richness will be slightly different.
What can I use instead of sweet pickle relish?
Dill relish is an easy substitute, and spicy relish adds a pleasant kick. Adjust quantity to taste.
Is it okay to use dried herbs instead of fresh ones?
Yes. Dried herbs like dill work well and are convenient; if using dried parsley instead of fresh, use a smaller amount since dried herbs are more concentrated.
What does Long John Silver’s Tartar Sauce taste like?
Expect a creamy, tangy sauce with mild sweetness from the relish, citrus brightness from lemon, and herbaceous notes from dill—an ideal complement to fried seafood.
What is Long John Silver’s Tartar Sauce made of?
This version is made of mayonnaise, sweet pickle relish, lemon juice, parsley (optional), dill weed, onion powder, garlic powder, salt, and pepper.
Conclusion
Long John Silver’s Tartar Sauce is a simple, classic condiment that brings a creamy, tangy finish to fried seafood and many other dishes. It takes only minutes to prepare and improves with a short chill, making it a practical and delicious addition to weeknight meals or casual gatherings. Try this copycat recipe to enjoy that familiar flavor at home.

Long John Silver’s Tartar Sauce
Recipe by Courtney
Course: Sides
Cuisine: American
Difficulty: Easy
1
Cup
10
minutes
300
kcal
10
minutes
A copycat of Long John Silver’s creamy, tangy tartar sauce — easy to make and perfect for fried fish and seafood.
Ingredients
-
1 cup mayonnaise
-
2 tablespoons sweet pickle relish
-
1 tablespoon lemon juice
-
1 tablespoon chopped fresh parsley (optional)
-
1/2 teaspoon dried dill weed
-
1/4 teaspoon onion powder
-
1/4 teaspoon garlic powder
-
Salt and pepper
Directions
- Combine mayonnaise, sweet pickle relish, and lemon juice in a medium bowl; whisk until smooth.
- Stir in chopped parsley (if using), dried dill, onion powder, and garlic powder until evenly mixed.
- Season with salt and pepper to taste and adjust lemon or relish as needed.
- Cover and chill for at least 30 minutes to let flavors meld.
- Stir before serving and enjoy.
Notes
- Fresh lemon juice gives the best bright flavor.
- Swap relishes to change the character—dill or spicy work well.
- A small amount of sugar can balance acidity if desired.
- Capers add a salty, briny note similar to many traditional tartar sauces.