Fat Free Tartar Sauce Recipe: Bright and Tangy Without the Oil

This fat-free tartar sauce delivers the classic tangy flavor without any oil or dairy. The secret is using silken tofu as a creamy base, blended with capers, pickles, and fresh herbs for that signature taste.

It comes together in 5 minutes with simple pantry staples and keeps well for up to a week. Perfect for seafood, sandwiches, or as a bright dipping sauce.

Ingredients for Fat Free Tartar Sauce

Ten simple ingredients create a creamy, tangy sauce that beats the traditional version.

The silken tofu is non-negotiable for that perfect creamy texture. Mori-Nu is the brand I always grab—it’s shelf-stable and consistently smooth. Look for it in the Asian foods aisle at Whole Foods or Kroger. If your store doesn’t carry it, Amazon has it in bulk. Make sure it’s soft or firm, not extra-firm, which can be grainy when blended.

No fresh herbs? Dried dill and parsley at one-third the amount work in a pinch. Out of pickles? Pickle relish adds the same tangy crunch—just use about half the quantity. For extra brightness, add a splash of apple cider vinegar. The Dijon can be swapped for regular yellow mustard, but the flavor will be milder. Always taste before adding salt—capers and pickles already bring plenty.

This keeps beautifully in a sealed container for 1 week in the fridge. The flavors actually improve after a day. Doesn’t freeze well though—the texture changes. For best results, give it a good stir before using since it may separate slightly.

Step-by-Step Instructions for Fat Free Tartar Sauce

This method ensures a creamy, tangy sauce without any added oil or fat.

Step 1: Prepare the Silken Tofu Base

Drain the 12 oz Silken Tofu thoroughly to remove excess water. I use a fine-mesh strainer and press gently with a spatula to extract as much liquid as possible. The drier the tofu, the thicker your sauce will be.

Transfer the drained tofu to a blender or food processor. This appliance will transform it into a smooth, neutral base that mimics the creaminess of traditional mayonnaise without the fat. The texture should be completely uniform with no visible lumps.

Step 2: Add the Briny and Tangy Elements

To the tofu, add the 2 tbsp Capers (drained and rinsed), ½ cup Dill Pickles (finely chopped), 2 tbsp Lemon Juice, and 1 tbsp Dijon Mustard. These ingredients provide the signature tang and saltiness that define this condiment.

The capers and pickles contribute a sharp, briny punch, while the lemon juice brightens the overall flavor. The Dijon mustard adds depth with its smooth texture and mild heat. Blend until all ingredients are fully incorporated and the mixture is silky.

Step 3: Incorporate the Fresh Herbs and Seasonings

Add the 2 tbsp Fresh Dill, 2 tbsp Fresh Parsley, ½ tsp Garlic Powder, ½ tsp Onion Powder, and ½ tsp Salt to the blender. Fresh herbs are essential here—they lend a vibrant, aromatic quality that dried herbs can’t match.

Blend once more until the herbs are finely minced and evenly distributed throughout the mixture. Pause to scrape down the sides of the blender as needed to ensure everything is combined. Taste and adjust the salt if necessary, though the capers and pickles already contribute significant saltiness.

Step 4: Chill and Allow Flavors to Meld

Transfer the mixture to a clean jar or airtight container. At this stage, the flavors may taste slightly sharp or one-dimensional. This is normal—they need time to harmonize.

Refrigerate for at least 1 hour before using. This resting period allows the tofu to absorb all the bold flavors from the capers, pickles, and herbs, resulting in a well-balanced, cohesive sauce. The texture will also thicken slightly as it chills.

Serve chilled alongside fish, seafood, or as a dip for vegetables. The sauce will keep in the refrigerator for up to 5 days, though it’s best enjoyed within 3 days for optimal freshness.

Best Sauces and Condiments for This Dish

Seafood Pairings

This sauce was made for crispy baked cod or air-fried fish sticks. The tangy brightness cuts through the richness of the fish perfectly. I love it with grilled shrimp skewers too—just brush it on before serving. 💛

Sandwich Spread

Use it as a creamy spread for fish sandwiches instead of mayo. It works wonderfully on veggie burgers too, adding a zesty kick. Spread about 2 tbsp on each side of the bun for maximum flavor.

Dip for Veggies

Serve as a dip with raw or roasted vegetables. Carrot sticks, celery, and cucumber slices are my favorites. The sauce’s bold flavors make even simple veggies taste exciting.

Potato Topper

Drizzle over baked potatoes or sweet potato fries for a tangy twist. I add a dash of hot sauce for extra heat. About 1 tbsp per serving is all you need.

Salad Dressing

Thin it out with a little water or lemon juice to make a light dressing for potato salad or coléslaw. It adds creaminess without the fat, and the herbs shine through beautifully.

Wrap Enhancer

Spread a thin layer in whole wheat wraps with lettuce, tomato, and your protein of choice. It’s a game-changer for veggie wraps or chickpea salad sandwiches.

Frequently Asked Questions