Sauces & Condiments
This Captain D's copycat tartar sauce delivers that signature mayonnaise-based zing with bright lemon zest and fresh dill—just like the restaurant version.
The secret lies in balancing tangy pickles, briny capers, and a touch of Dijon mustard for depth, all emulsified into a smooth, creamy sauce that clings perfectly to fish, fries, or veggies. I’ve recreated it exactly, down to the texture and flavor profile that makes it irresistible.
The recipe uses simple pantry staples but achieves restaurant-quality results with minimal effort—just 10 minutes of prep and no special equipment. The key is whisking the ingredients together thoroughly to create a velvety consistency without lumps, while the lemon zest and fresh dill add that signature freshness.
This isn’t just a condiment; it’s a flavor booster that transforms ordinary meals into something special.
What you’ll end up with is a creamy, tangy sauce that’s bright enough to cut through rich foods but rich enough to stand alone. The pickles and capers add just the right amount of briny crunch, while the lemon zest ensures every bite is vibrant and full of character.
It’s the kind of sauce that disappears quickly—once you taste it, you’ll never go back to store-bought again.
Perfect for pairing with fried fish, seafood platters, or even as a dip for veggies, this tartar sauce keeps well in the fridge for up to 5 days—though I doubt it’ll last that long. Let’s get started on recreating this classic.
Ingredients for captain d's copycat tartar sauce
Nine simple ingredients transform into that iconic Captain D's tartar sauce—creamy, tangy, and brimming with fresh dill flavor.
| Ingredient | Amount | Notes |
|---|---|---|
| Mayonnaise 🥛 | ¾ cup | High-quality, full-fat preferred |
| Fresh Dill Weeds 🌿 | ¼ cup | Finely chopped, stems removed |
| Lemon Zest 🍋 | 1 tbsp | From 1 large organic lemon |
| Dijon Mustard 🍯 | 1 tbsp | Mild or hot variety |
| Pickle Relish 🥒 | 2 tbsp | Sweet or dill pickle relish |
| Capers 🫒 | 1 tbsp | Chopped, drained well |
| Extra-Virgin Olive Oil 🫒 | 1 tbsp | For emulsification |
| Fresh Lemon Juice 🍋 | 1 tbsp | From same lemon as zest |
| Kosher Salt 🧂 | ½ tsp | Diamond Crystal preferred |
| Freshly Ground Black Pepper 🌶️ | ¼ tsp | Cracked peppercorns preferred |
The mayonnaise is non-negotiable—Hellmann's or Duke's are the gold standard here, but any full-fat mayo works. Fresh dill is a must for that signature brightness; Trader Joe's sells it pre-washed in tubs, which saves time. For the lemon, grab an organic one if possible—the zest should be vibrant yellow, not pale or bitter. The capers and relish add that briny, sweet contrast that makes this sauce sing. I always buy Penzeys brand capers for the best quality, but any jarred capers work if they're drained well.
No fresh dill? Dried dill at one-third the amount gets you close, though it lacks that bright pop. Subbing Greek yogurt for mayo (half and half) cuts calories but dulls the richness. Short on capers? Extra relish or a pinch of salted caper powder works in a pinch. The olive oil is key for emulsification—don't skip it. For the lemon, if you only have bottled juice, add 1/4 tsp lemon zest powder to mimic the freshness. The Dijon mustard adds depth, but if you're out, yellow mustard thinned with water works surprisingly well.
This sauce keeps beautifully in an airtight container in the fridge for 5 days, though it's best within 2-3 days. For longer storage, portion into ice cube trays and freeze—perfect for single servings later. The texture thickens slightly when chilled, so whisk vigorously before serving. I always make extra; it disappears faster than you'd think, especially when paired with crispy fish or golden fries.
Why You'll Love This Recipe
- Five-Ingredient Magic: I swear, this is the kind of recipe where you’ll laugh because it’s that simple. Just mayo, fresh dill, lemon zest, a spoonful of Dijon, and a dash of pickle relish—no fancy techniques, no stress. Honestly, I’ve made it while waiting for takeout to arrive.
- Bright & Tangy Kick: That lemon zest and Dijon mustard combo? It’s what makes this sauce pop—bright, punchy, and just a little zingy. The pickle relish adds this subtle crunch that keeps it interesting, not just another creamy dip.
- Game for Any Meal: Slather it on fish sticks for a kid-friendly upgrade, use it as a sandwich spread, or serve it with fries like the golden ticket it is. Between us, it’s my go-to for game day snacks too—no one even questions why it’s on the table.
- Makes a Week’s Worth: A single batch stretches across lunches, dinner sides, and even as a quick snack with crackers. And because it’s mostly mayo, it’s cheap—no fancy ingredients, no wasted food. I’ll be real: I’ve had this sitting in my fridge for days and it’s still delicious.
Step-by-step instructions for Captain D's copycat tartar sauce
This is the exact method that delivers that iconic restaurant tang—bright, herby, and perfectly balanced.
Combine Wet Ingredients for a Smooth Base
In a medium bowl, begin by whisking together the 0.75 cup mayonnaise until completely smooth. This ensures no lumps remain for a velvety texture. Gradually add the 1 tablespoon dijon mustard and 1 tablespoon extra-virgin olive oil, whisking continuously to fully incorporate each ingredient. The mustard adds depth while the olive oil helps emulsify the sauce for stability.
Next, fold in the 1 tablespoon fresh lemon juice and 1 tablespoon lemon zest using gentle circular motions with a rubber spatula. The zest contributes bright citrus notes while the juice prevents the sauce from becoming too thick. At this stage, the mixture should resemble a pale yellow, slightly tangy emulsion with no visible streaks of lemon.
Fold in Chopped Herbs and Briny Elements
Add the 0.25 cup finely chopped fresh dill weeds and the 1 tablespoon drained capers to the bowl. Using the spatula, gently fold these ingredients into the wet mixture until evenly distributed. The dill provides that signature herby freshness while the capers deliver a briny punch that mimics the restaurant version's complexity. Avoid overmixing—just until everything is combined to maintain the sauce's delicate texture.
Next, incorporate the 2 tablespoons pickle relish by folding it in with the spatula. The relish adds subtle sweetness and a touch of tang that rounds out the sauce's flavor profile. You'll notice the color begin to deepen slightly as the relish integrates, creating a more vibrant hue. This is where the sauce starts to develop its characteristic depth.
Season and Emulsify for Perfect Texture
Add the 0.5 teaspoon kosher salt and 0.25 teaspoon freshly ground black pepper to the bowl. Using the spatula, gently fold these seasonings into the mixture until completely dissolved. Taste the sauce at this stage—it should be tangy but not overly salty. If needed, adjust the seasoning with a pinch more salt or a crack of pepper, but be cautious as the other ingredients already contribute significant flavor.
Give the sauce one final stir to ensure all components are uniformly distributed. The texture should be smooth, slightly thick, and cling to the back of a spoon. If the sauce appears too thick, add 1 teaspoon water at a time until it reaches a spreadable consistency. Conversely, if it's too thin, let it sit at room temperature for 5-10 minutes to allow the mayonnaise to firm up naturally.
Rest and Serve for Maximum Flavor
Cover the bowl with plastic wrap and refrigerate the sauce for at least 30 minutes before serving. This resting period allows the flavors to meld and the texture to set properly. The cold temperature also enhances the brightness of the lemon and freshness of the dill, creating that signature Captain D's tang.
When ready to serve, give the sauce one final stir to redistribute any settled ingredients. The finished sauce should have a vibrant greenish-yellow hue from the dill and a glossy sheen from the olive oil. Serve immediately with golden fries, crispy fish, or as a dip for fresh vegetables. The sauce will keep in the refrigerator for up to 5 days, though it's best enjoyed fresh for optimal flavor and texture.
Pro Tips For Making Captain D'S Copycat Tartar Sauce
- STRAIN THE RELISH: That pickle relish isn’t smooth—it’s got chunks that’ll turn your tartar sauce into a textural disaster. After mixing everything, pour the sauce through a fine-mesh strainer or even a clean kitchen towel folded double. Yes, it’s extra work, but your sauce will be silky instead of grainy.
- ZEST FIRST, THEN JUICE: Lemon zest adds bright flavor, but if you juice the lemon first, you’ll end up with a bitter, watered-down mess. Use a microplane to get just the zest (about 1 teaspoon), then squeeze the juice after mixing the other ingredients. The acidity needs to balance the mayo, not dilute it.
- CHILL BEFORE SERVING: Room-temperature tartar sauce loses its structure and tastes flat. After mixing, refrigerate it for at least 30 minutes—better yet, make it a day ahead. The flavors meld, and the sauce holds its shape when you dip those fries or fish sticks in.
- DILL IN STAGES: Fresh dill is potent—start with half the recipe’s amount, mix it in, then taste. If it needs more, add the rest gradually. Too much dill turns your sauce into a herbal punch; too little leaves it bland. I learned this after making a batch that tasted like a dill weed smoothie.
Perfect pairings for these flavors
Seafood Pairings
This tartar sauce is a must with fried or grilled fish fillets like cod, haddock, or flounder. The creamy texture and bright lemon-dill flavor balance perfectly against crispy, golden fish. I like to serve it with lemon wedges on the side so guests can squeeze fresh juice over their bites.
For a restaurant-style experience, arrange the fish on a bed of arugula and drizzle with extra sauce. 🍽️
Crispy Fries
Captain D’s is famous for its fries, and this sauce takes them to the next level. Use thick-cut russet potatoes cut into ½-inch sticks and fried until golden and crispy (I aim for 350°F oil temperature).
Serve the fries in a paper-lined basket and let guests dip freely—this sauce disappears fast! For extra flair, sprinkle with flaky sea salt and fresh parsley before serving.
Vegetable Dippers
This isn’t just a seafood sauce—it’s a versatile dip for raw or lightly cooked veggies. Try it with carrot sticks, cucumber slices, bell pepper strips, or endive leaves.
For a heartier option, pair it with warm pita chips or pretzel crisps. The tangy, herby flavor cuts through the richness of roasted vegetables like asparagus or brussels sprouts, too.
Sandwich Spread
Spread this sauce on toasted sourdough or ciabatta for an elevated open-faced sandwich. Top with smoked salmon, avocado slices, and red onion for a brunch-worthy bite.
It also works as a condiment for seafood po’boys or fish tacos, adding that signature Captain D’s zing without overpowering the main dish. 🌟
Deviled Egg Upgrade
Mix 1 tablespoon of this tartar sauce into classic deviled egg filling for a bright, herby twist. The dill and lemon zest elevate the flavor profile, making each bite taste like a seafood-inspired appetizer.
Garnish with paprika and a dill sprig for a pop of color. This combo is perfect for picnics or game-day snacks.
Garnish Game
Elevate your presentation with microgreens, edible flowers, or toasted sesame seeds on top. A lemon zest twist adds a fresh aroma, while crispy fried shallots (store-bought or homemade) give a gourmet crunch.
For a smoky touch, sprinkle with smoked paprika right before serving. These garnishes make your homemade sauce look—and taste—just like the restaurant version. ✨
Nutrition facts
Frequently asked questions
Can I make this tartar sauce without fresh dill?
Yes, but it won't taste exactly the same. Use 1 teaspoon dried dill instead of ¼ cup fresh—it lacks the bright freshness but still adds herby flavor. For a closer match, try 1 tablespoon chopped parsley mixed with ½ teaspoon dried dill. The lemon zest and capers will still carry the tangy character, but the herb profile will be milder.
How do I fix a broken emulsion (separation) in my sauce?
If your sauce splits, whisk in 1 teaspoon extra-virgin olive oil and 1 teaspoon lemon juice while stirring vigorously. The oil helps re-emulsify the mayo, while the acidity tightens the mixture. For stubborn separation, add ½ teaspoon Dijon mustard and whisk until smooth. Chill for 10 minutes before serving to restore texture.
Can I make this sauce ahead of time?
Store it in an airtight container in the fridge for up to 5 days. The flavors actually improve slightly as the ingredients meld. For longer storage, portion into ice cube trays and freeze—thaw overnight in the fridge before using. Give it a quick whisk before serving to restore that creamy consistency.
What's the secret to getting that restaurant-style tang?
The tang comes from balancing lemon juice, pickle relish, and capers. Don't skip the zest—it adds aromatic brightness. For extra zing, add ½ teaspoon white wine vinegar or a pinch of Worcestershire sauce. The key is fresh ingredients: use bright lemon, crisp capers, and fresh dill for that signature Captain D's punch.
Is this sauce safe to eat raw?
Yes, all ingredients are safe to eat raw, and this sauce is designed to be served without cooking. The mayonnaise, lemon, and herbs are all shelf-stable components when properly stored. Just ensure your mayo is fresh (check the expiration date) and that any seafood you're serving it with is fully cooked to 145°F internal temperature. The sauce itself doesn't require cooking.