Mayo Ketchup Sauce Recipe: Tangy Dip for Fries and Burgers

This versatile sauce combines the creamy richness of mayonnaise with the bold tang of ketchup for a perfectly balanced dip that elevates fries, burgers, and more. I developed this ratio after testing countless variations to find the ideal blend.

Simple to mix in 2 minutes, this condiment stays fresh in the fridge for up to a week. The smooth texture and vibrant color make it a crowd-pleasing addition to any meal.

Ingredients for Mayo Ketchup Sauce

Creamy mayo meets tangy ketchup with a few secret boosts for depth.

The mayo is doing most of the heavy lifting here, so Duke’s or Hellmann’s are my go-tos—avoid the sweet salad dressing stuff. Ketchup should be classic Heinz (the gold standard for balance). I grab my spices from the bulk bins at Whole Foods so I can buy just what I need. Vegetarian Worcestershire is a must—Annie’s makes a solid version without anchovies.

No Dijon? Yellow mustard at half the amount works in a pinch. Swap white vinegar for apple cider vinegar if that’s what’s in your pantry. Skip the smoked paprika if you’re not into that vibe, but it adds a nice layer. Out of lemon juice? A splash of pickle brine brings the same tang. The garlic and onion powders are flexible—use fresh if you’ve got it, just mince it fine.

This keeps 7 days in the fridge in a sealed jar. The flavors meld after a few hours, so it tastes even better the next day. Freezing isn’t ideal (separation issues), but it holds for 1 month if needed. Stir well before using after storage.

Step-by-Step Instructions for Mayo Ketchup Sauce

Here’s my foolproof method for a tangy, creamy sauce that’s ready in minutes.

Step 1: Combine the Base Ingredients

In a medium bowl, whisk together the 0.75 cup Mayonnaise and 0.25 cup Ketchup until completely smooth and uniform in color. I use full-fat mayonnaise here—it gives the sauce that luxurious, velvety texture that clings perfectly to fries.

This is your foundation. The mayonnaise provides richness while the ketchup adds that classic tomato sweetness. Make sure there are no streaks of either ingredient visible—you want a consistent, cohesive base before adding the flavor enhancers.

Step 2: Add the Acidic and Tangy Elements

Stir in the 1 tsp White Vinegar, 1 tsp Dijon Mustard, and 0.5 tsp Lemon Juice. The vinegar and lemon juice brighten the sauce, cutting through the richness of the mayo, while the Dijon adds a subtle sharpness that balances the sweetness.

At this stage, the mixture might look slightly separated, but don’t worry. As you continue whisking, it’ll emulsify into a smooth, glossy sauce. Freshly squeezed lemon juice makes a noticeable difference here—it’s more vibrant than bottled.

Step 3: Incorporate the Seasonings

Add the 0.25 tsp Garlic Powder, 0.25 tsp Onion Powder, 0.125 tsp Smoked Paprika, 0.5 tsp Worcestershire Sauce, and 0.125 tsp Salt. These ingredients add depth and complexity—garlic and onion powders provide a savory backbone, while the smoked paprika gives a subtle hint of smokiness.

The Worcestershire sauce is the secret weapon here. It adds umami and a touch of tang that ties everything together. If you’re using a vegetarian version, taste as you go—some brands can be saltier than others.

Step 4: Whisk Until Smooth and Adjust to Taste

Whisk everything together vigorously for about 30 seconds until the sauce is completely smooth and all the seasonings are evenly distributed. The sauce should be thick but still pourable—if it’s too thick, you can thin it with a teaspoon of water, but I’ve never found it necessary with these proportions.

Give it a taste and adjust the seasoning if needed. The salt can be increased slightly if you prefer a bolder flavor, but remember that the ketchup and Worcestershire already contribute saltiness. This is your moment to fine-tune it to your preference.

Let the sauce sit for 5-10 minutes before serving to allow the flavors to meld together. You’ll notice the difference—it becomes more cohesive and balanced after a short rest.

Dietary Considerations for This Recipe

Gluten-Free Friendly

This sauce is naturally gluten-free as written, assuming you use standard brands like Hellmann’s or Duke’s mayo. Always check your ketchup label though—some brands add thickeners. I stick with Heinz for consistency.

Dairy-Free Option

Since mayonnaise is egg-based, this recipe is inherently dairy-free. Vegan friends can swap in Just Mayo or Vegenaise for identical results. The texture remains smooth and creamy with these alternatives.

Low-Carb Adaptation

For a keto-friendly version, use sugar-free ketchup like G Hughes. This cuts the carbs from 20g per serving to just 2g. The taste difference is minimal, and the sauce stays just as tangy.

Allergen Notes

This contains egg from the mayonnaise. For egg allergies, try avocado oil mayo from Primal Kitchen. It’s pricier but works beautifully in this recipe. 💡

Vegetarian & Vegan

The standard recipe is vegetarian. For vegan, use plant-based mayo and Annie’s vegetarian Worcestershire. The flavor profile stays nearly identical, and no one will notice the difference.

Sodium Control

To reduce sodium, use low-sodium ketchup and skip the added salt. You’ll save about 300mg per serving. The garlic and onion powders still provide plenty of flavor without the extra salt.

Frequently Asked Questions