Long John Silver’s Tartar Sauce Recipe: Tangy Pickle-Relish Cream for Crispy Seafood

This tartar sauce delivers the signature tangy, slightly sweet flavor that makes Long John Silver’s seafood so addictive. The secret lies in the perfect balance of finely chopped pickles, capers, and lemon juice blended into a creamy mayonnaise base. I’ve tested multiple ratios to achieve that authentic fast-food texture—smooth enough to cling to crispy batter but with just enough texture to keep it interesting.

What sets this version apart is its versatility. Use it as a dip for fried fish, shrimp, or even french fries, or spread it on seafood sandwiches for extra moisture and flavor. The sauce keeps well in the fridge for up to 5 days, making it ideal for meal prep or weekend gatherings. For best results, let it chill for at least 30 minutes before serving to allow flavors to meld completely.

Ingredients for Long John Silver’s Tartar Sauce

Just 12 ingredients transform into that addictive Long John Silver’s tartar sauce you crave.

[recipeingredientscaler]

The mayo base is everything here. Duke’s or Hellmann’s give that authentic fast-food creaminess—don’t use low-fat. For the pickles, Claussen or Vlasic dill spears work best (avoid the pre-chopped kind). Sweet relish is key for that signature tangy-sweet balance; Heinz is my go-to. Capers add that briny pop, but if you can’t find them, extra chopped pickles work in a pinch. Fresh lemon juice brightens everything up—bottled just doesn’t cut it.

No sweet relish? Finely chopped bread-and-butter pickles get you close. Out of capers? Chopped green olives add a similar briny kick. The Dijon mustard is non-negotiable though—it’s what gives that subtle depth. If you’re watching sugar, you can skip the granulated sugar or use a sugar substitute. Fresh dill is better than dried, but dried at half the amount works. The garlic and onion powders are background players—don’t stress if you’re out.

This sauce actually gets better after 24 hours in the fridge as flavors meld. Store in an airtight container for up to 5 days—perfect for meal prep. The oil in mayo can separate, so give it a good stir before using. For parties, double the batch and keep half in the fridge until needed. Freezing isn’t recommended (mayonnaise doesn’t handle it well).

Step-by-Step Instructions for Tangy Tartar Sauce

Here’s how to whip up that signature Long John Silver’s flavor—tangy, creamy, and perfect for seafood.

Step 1: Prepare the Pickle and Caper Mixture

Start by finely chopping the 0.5 cup dill pickles until they’re in small, uniform pieces. I like to pat them dry with a paper towel first—this prevents the sauce from becoming watery. Transfer them to a medium mixing bowl.

Next, drain and chop the 1 tbsp capers, then add them to the bowl with the pickles. These two ingredients give the sauce its signature briny punch. Stir them together and set aside while you gather the remaining ingredients.

Step 2: Combine Wet Ingredients and Seasonings

In a separate large bowl, whisk together the 1.5 cups mayonnaise, 2 tbsp fresh lemon juice, 1 tbsp white vinegar, and 1 tbsp yellow mustard. The lemon juice and vinegar add that bright tanginess that balances the richness of the mayo.

Now add the 1 tsp granulated sugar, 0.5 tsp dried dill, 0.25 tsp garlic powder, 0.25 tsp onion powder, and 0.25 tsp salt. Whisk everything until completely smooth. Taste and adjust the sugar or salt if needed—this is your chance to fine-tune the flavor.

Step 3: Fold in Pickles, Relish, and Final Adjustments

Add the prepared pickle-caper mixture to the mayo base, then stir in the 3 tbsp sweet relish. I prefer green relish for this recipe, but yellow works too. Fold everything together gently—you want the ingredients distributed evenly without overmixing.

The sauce should look creamy with visible flecks of pickles and relish. If it seems too thick, you can thin it slightly with a splash of water, but I usually find the mayo base is just right. Cover the bowl and let it chill in the refrigerator for at least 30 minutes before serving.

Step 4: Chill and Serve for Best Flavor

This resting time lets all the flavors meld together. When you’re ready to serve, give the sauce a good stir—it might separate slightly as it chills. The texture should be thick but spoonable, perfect for dipping crispy fish or spreading on sandwiches.

Store any leftovers in an airtight container in the fridge for up to 5 days. The flavor actually improves after a day as the ingredients continue to blend. This makes about 2 cups of sauce, enough for 4 generous servings with your favorite seafood dishes.

Serving Suggestions for long john silvers tartar sauce

Classic Seafood Pairings

This sauce was practically made for crispy beer-battered fish—try it with cod or haddock fillets fresh from the fryer. The tangy-sweet balance cuts through the richness perfectly. I love serving it with Long John Silver’s-style fish tacos too, where the creamy texture adds moisture to each bite. 🌊

For a complete seafood platter, pair it with buttery shrimp or golden crab cakes. The sauce’s briny notes from the capers complement shellfish beautifully. Don’t forget a lemon wedge on the side—just a squeeze brightens everything up.

Unexpected Dippers

Think beyond seafood! This tartar sauce makes an amazing dip for crispy french fries or onion rings. The creamy texture clings to the ridges perfectly. I’ve even used it as a spread for grilled cheese sandwiches—trust me, it’s a game-changer with sharp cheddar.

Try it with fried zucchini sticks or hush puppies for a Southern-inspired twist. The sweet relish adds a surprising pop against the savory fried foods. Kids especially love this combo—it’s a sneaky way to get them eating veggies!

Sandwich Spread Magic

Elevate your fish sandwiches by slathering this sauce on both sides of the bun. It prevents sogginess while adding flavor to every bite. I like to add a handful of shredded lettuce and a tomato slice for crunch. The sauce also works wonders in lobster rolls, cutting through the buttery richness.

For a hearty option, try it on fried oyster po’ boys. The sauce’s texture helps hold all the ingredients together while adding that signature Long John Silver’s flavor. A dusting of Cajun seasoning on the fries completes the meal.

Party Platter Ideas

Set up a seafood board with this sauce as the centerpiece. Arrange fried shrimp, smoked salmon, and oyster crackers around a bowl of the tartar sauce. Add lemon wedges and fresh parsley for garnish. The vibrant colors make it as pretty as it is delicious.

For summer gatherings, serve it with grilled shrimp skewers and chilled steamed artichokes. The sauce’s creaminess pairs surprisingly well with the artichoke’s earthy flavor. Keep extra sauce in the fridge—it disappears fast at parties! 🎉

Meal Prep Tips

Make a double batch on Sunday to use throughout the week. Portion into small airtight containers for easy grab-and-go lunches. I like to pack it with pre-cooked shrimp and whole wheat crackers for a protein-rich snack. The sauce keeps the shrimp moist without making them soggy.

Use it as a salad dressing base—thin with a little buttermilk and toss with chopped romaine and hard-boiled eggs. The flavors work surprisingly well together, and it’s a great way to use up leftovers before they spoil.

Kid-Friendly Serving

Turn veggie time into fun time by serving this sauce with carrot sticks, celery batons, and bell pepper strips. The familiar fast-food flavor makes veggies more appealing. I’ve found kids are more likely to try new foods when they can dip them in this creamy sauce.

Make mini fish stick sliders using Hawaiian rolls, flaked white fish, and a dollop of tartar sauce. Cut into fun shapes with cookie cutters for picky eaters. The sauce’s mild tanginess is usually a hit with little ones who might otherwise shy away from seafood.

Frequently Asked Questions