British tartar sauce is a cool, creamy condiment made with mayonnaise, chopped gherkins, capers, lemon and herbs, usually served alongside fish and chips or other seafood. Its rich base is balanced by sharp, briny additions, while a short chill lets the flavours mingle without making the sauce difficult to prepare.
Ingredients
- 1 cup mayonnaise (240 g), full-fat or light
- ⅓ cup finely chopped British-style gherkins (55 g), drained; cornichons are a good alternative
- 1 tablespoon drained capers (9 g), rinsed if particularly salty and finely chopped
- 1 tablespoon finely chopped shallot (10 g)
- 2 tablespoons finely chopped fresh flat-leaf parsley (8 g)
- 1 tablespoon lemon juice (15 ml), plus more to adjust
- 1 teaspoon finely grated lemon zest (2 g), optional
- 1 teaspoon Dijon mustard (5 g)
- ½ teaspoon Worcestershire sauce (2.5 ml), optional
- ⅛ teaspoon fine salt (about 0.7 g), or to taste
- ⅛ teaspoon freshly ground black pepper (about 0.3 g), or to taste
Instructions
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Drain the gherkins and capers well. If the gherkins are very wet, pat them with a clean paper towel before chopping; excess pickle liquid can thin the sauce. Chop the gherkins and capers finely, aiming for small, distinct pieces rather than a paste. Finely chop the shallot and parsley, and zest and juice the lemon if using zest.
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Add the mayonnaise, chopped gherkins, capers, shallot, parsley, lemon juice, lemon zest if using, Dijon mustard and Worcestershire sauce if using to a medium bowl. Stir with a spoon or small spatula until the ingredients are evenly distributed. Scrape around the bottom and sides so there are no pockets of plain mayonnaise.
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Season with the salt and black pepper, starting with the stated amounts. Stir, then taste a small spoonful. Capers and pickles vary in saltiness, so it is better to begin lightly and add more salt only if the sauce needs it. Add a little more lemon juice if it tastes too rich, or another spoonful of mayonnaise if it is sharper than you like.
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Cover the bowl and refrigerate the sauce for 20 minutes before serving. This brief rest softens the raw edge of the shallot and allows the lemon, herbs and pickles to flavour the mayonnaise. The sauce should remain thick and spoonable. Stir once more after chilling, then taste again and make any final seasoning adjustment.
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Spoon into a clean serving dish and serve cold. If you are not serving it straight away, keep it covered and refrigerated rather than leaving it on the table. For a neat presentation, finish with a pinch of chopped parsley or a few finely chopped capers, but keep the garnish modest so the flavour of the sauce stays balanced.
Tips
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Choose the right pickle. British gherkins are pickled cucumbers that often have a sweet-and-sour flavour. Cornichons are smaller, firmer and usually sharper, so they make a good swap but may need a touch less lemon. If using a US dill pickle, expect a more savoury, dill-forward sauce; taste before adding extra salt.
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Keep the pieces small, not puréed. Finely chopping the gherkins and capers gives each bite a little texture and lets their briny flavour spread through the mayonnaise. A food processor can quickly turn them into a wet relish, which may loosen the sauce. If you do use one, pulse briefly and stop while the pieces are still visible.
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Adjust acidity gradually. Lemon juice varies in strength, and pickles bring their own vinegar, so the full tablespoon is a starting point rather than a reason to add more automatically. Stir in extra juice a teaspoon at a time. If the sauce becomes too sharp, fold in a little more mayonnaise rather than trying to hide the acidity with extra salt.
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Use a mild onion flavour. Shallot adds a gentle savoury note, but a large or pungent one can dominate. Chop it very finely and use less if its flavour is strong. For a softer taste, leave the shallot out or soak the chopped pieces in cold water for five minutes, then drain and dry them well before mixing.
Serving Suggestions
The classic British pairing is fish and chips: serve the sauce cold beside hot battered fish, chips and a lemon wedge. It is also a natural match for baked, grilled or pan-fried fish, including cod, haddock, salmon and white fish fillets. Keep the sauce in a small bowl rather than spreading it onto very hot food well ahead of serving; that preserves its cool, thick texture and lets each person add as much as they like.
For a seafood platter, offer it with chilled cooked prawns, crab, smoked fish or fish cakes. It is equally useful alongside simple fish fingers, where its sharp pickles bring contrast to the crisp coating. For a casual lunch, spread a thin layer inside a fish sandwich or serve a spoonful with a jacket potato topped with flaked cooked fish. A little goes a long way, so start with a modest portion and let people add more.
It can also work as a dip for chips, roasted potato wedges, crunchy vegetables or savoury fritters. If serving it with a warm meal, keep the bowl chilled until the table is ready and set it out just before eating. That practical detail matters at a buffet or outdoor meal, where mayonnaise-based sauces should not sit unrefrigerated for long.
Variations
Herb-forward version: Replace the parsley with 1 tablespoon finely chopped dill (about 3 g), or use half parsley and half dill. Dill gives the sauce a familiar flavour alongside fish, while chives add a mild onion note. Add fresh herbs in small amounts; a large handful can take over the more delicate lemon and caper flavours.
More traditional, sharper profile: Omit the Dijon and Worcestershire sauce, then add an extra teaspoon of chopped capers or a little more lemon juice if needed. Some British-style versions include a mix of herbs or a small amount of onion, and proportions vary between cooks. The important balance is creamy mayonnaise with clearly noticeable pickle, caper and citrus notes.
Without capers: If capers are unavailable, finely chopped green olives can provide a briny substitute. Start with 2 teaspoons (10 g), since olives can be saltier and more assertive, then taste before adding more. The result will be less floral and more olive-forward, but it still gives useful savoury contrast. Chopped cornichons alone can also work, though the sauce will have less of the distinct caper flavour.
Lighter texture: Replace up to ¼ cup (60 g) of the mayonnaise with thick plain Greek-style yogurt. The sauce will taste tangier and less rich, and it may be a little softer, so add the yogurt gradually. Avoid thin or watery yogurt, which can make the mixture runny. This is a change in style rather than a direct flavour match for a classic mayonnaise-based version.
Extra crunch: Stir in 1 tablespoon (15 g) finely diced celery or a little extra gherkin just before serving. Keep any additions small and drain them well. A large quantity of watery vegetables can dilute the dressing, while crunchy ingredients added too early may soften as they sit.
Storage and Reheating
Transfer leftover sauce to a clean, covered container and refrigerate it within 2 hours of preparation or serving. Keep the refrigerator at 40°F (4°C) or below, and use the sauce within 3 to 4 days. For the best flavour and texture, it is often nicest during the first two days, when the parsley is still bright and the chopped vegetables retain their freshness. Use a clean spoon each time you serve it, and discard the sauce if it has been left out beyond the two-hour limit.
This sauce is served cold, so reheating is not needed. Do not warm it on the stove or in a microwave: heat can cause the mayonnaise to separate and the herbs to lose their fresh flavour. Freezing is not recommended because mayonnaise-based sauces commonly separate and turn grainy after thawing. If you need sauce for a later meal, it is better to prepare a fresh batch than to freeze this one.
If you want to make it ahead, you can chop the gherkins, capers, shallot and parsley a few hours in advance and keep them covered in the refrigerator. Mix them with the mayonnaise and lemon closer to serving for the freshest colour and texture, or prepare the complete sauce the day before and keep it chilled. Give it a stir and check the seasoning before it goes to the table, since the flavours can become more pronounced as it rests.
Frequently Asked Questions
What makes this British tartar sauce different?
There is no single recipe used in every British home, but the familiar style is a mayonnaise-based sauce with chopped gherkins, capers, lemon and herbs. British gherkins may be sweeter than some dill pickles, and the sauce is commonly served with fish and chips. This recipe uses parsley and shallot, with Dijon and Worcestershire sauce as optional supporting flavours rather than dominant ingredients.
Can I make the sauce without capers?
Yes. Leave them out and increase the finely chopped gherkins slightly, or use a small amount of chopped green olive for a briny replacement. Olives are usually saltier and bring a different flavour, so start with 2 teaspoons and taste before adding more. The sauce will still be creamy and tangy, though it will lack the characteristic caper note.
Can I make British tartar sauce ahead of time?
Yes. Making it several hours ahead gives the flavours time to mingle, and it can be prepared the day before serving if kept covered in the refrigerator. Stir it before serving and taste again, since the pickle and caper flavours may seem stronger after resting. If it has thickened, loosen it with a small squeeze of lemon juice rather than adding water.
Why has my tartar sauce turned watery?
The most common reason is that the chopped pickles or capers were not drained well, or that a watery ingredient was added. Pat very wet gherkins dry and drain capers before chopping. If the sauce is only slightly loose, stir in a little mayonnaise and chill it briefly. Avoid trying to fix a thin sauce with a large amount of extra salt or lemon.
What can I use instead of mayonnaise?
Thick plain Greek-style yogurt can replace part or all of the mayonnaise, but the flavour will be tangier and the texture less rich. For a closer balance, replace only up to ¼ cup (60 g) of the mayonnaise and keep the rest. Choose a thick yogurt and add it gradually so the sauce does not become runny.