Cajun remoulade is a creamy, spiced mayo-based sauce that takes about 15 minutes to pull together and punches well above its weight on a burger. It hits tangy, spicy, and slightly sweet all at once — which is exactly why it works better than plain mayo or ketchup on a lot of builds. Make it before you start the rest of dinner and it’s ready to go by the time the patties come off the grill.
Why this recipe works
Two things make this sauce actually good instead of just okay. First, the combination of Dijon mustard and lemon juice cuts through the fat in the mayonnaise — without both, the sauce tastes flat and heavy. Second, the capers and sweet relish are doing real work here: they add bursts of salt and sweetness that keep each bite interesting. The one-hour chill time in the recipe card isn’t just resting — the garlic and Cajun seasoning need time to bloom into the mayo rather than sitting on top of it. If you skip the chill, the garlic tastes raw and sharp. Don’t skip it.
Shopping notes
- Cajun seasoning: Blends vary a lot in salt content. Taste yours before adding the full teaspoon — some brands are very salty and will throw the whole sauce off. Adjust at the end rather than the beginning.
- Hot sauce: Louisiana-style sauces like Crystal or Frank’s RedHot are thin and vinegary, which is what you want here. Thicker hot sauces like Tabasco chipotle or sriracha will change the texture and sweetness profile noticeably.
- Capers: Buy the small nonpareil variety if you have a choice — they’re less bitter and chop more evenly into the sauce.
- Smoked paprika: Regular sweet paprika works in a pinch, but smoked paprika adds a background depth that regular paprika doesn’t. Worth having a jar around.
Storage and reheating
Store the remoulade in an airtight container in the fridge for up to one week — the recipe card confirms this. The flavor actually improves on day two once everything has had more time to meld. This sauce doesn’t freeze well; mayo-based sauces separate when frozen and thawed, leaving a greasy, broken texture that won’t come back together. There’s no reheating needed or recommended — serve it cold straight from the fridge.
Troubleshooting
- Sauce tastes too sharp or raw: The garlic hasn’t had enough time to mellow. Give it the full hour in the fridge — or longer. Mincing the garlic very finely rather than roughly chopping it also helps it distribute evenly and lose that harsh edge faster.
- Too thin or runny: This usually means the lemon juice was measured generously or the relish was added without draining it. Squeeze excess liquid from the relish before folding it in, and measure the lemon juice rather than eyeballing it.
- Too salty: Your Cajun seasoning blend is the likely culprit — skip the extra pinch at the end and add a small amount of unseasoned mayo to dilute without watering it down.
- Heat level is too high after chilling: Spice intensifies as the sauce sits. Use half the hot sauce and half the Cajun seasoning upfront, then taste and add more after the chill rather than before — this gives you much better control than adjusting at the start.
- Sauce looks grayish or dull: The smoked paprika can bleed color unevenly if the sauce isn’t stirred well before serving. Give it a good stir straight from the fridge and the color evens out immediately.
Cajun Remoulade
Ingredients
Ingredient List
- 1 cup mayonnaise Use full-fat for creamier texture
- 2 tbsp Dijon mustard Preferably grainy for extra texture
- 2 tbsp hot sauce Louisiana-style for authenticity
- 1 tbsp fresh lemon juice Juice of about half a lemon
- 1 tsp paprika Smoked for deeper flavor
- 1 tsp cajun seasoning Adjust based on spice preference
- 1 clove garlic Minced finely
- 1 tbsp capers Chopped
- 1 tbsp sweet relish Adds a slight sweetness
- 2 tbsp scallions Finely chopped
Instructions
- In a medium mixing bowl, combine the mayonnaise and Dijon mustard, stirring until smooth and well-blended.
- Stir in the hot sauce and lemon juice, mixing until the flavors meld together and the sauce is smooth.
- Add the paprika, cajun seasoning, and minced garlic. Mix well to incorporate the spices evenly throughout the sauce.
- Carefully fold in the chopped capers, sweet relish, and scallions to add texture and a burst of freshness. Ensure all ingredients are evenly distributed.
- Taste and adjust seasoning if necessary, adding more hot sauce for extra heat or more cajun seasoning for added depth.
- Cover and refrigerate for at least 1 hour to allow the flavors to marry. Serve chilled.
Notes
Nutrition
Common questions
Can I use miracle whip instead of mayonnaise?
You can, but the sauce will taste noticeably sweeter and less rich. Miracle Whip already contains sugar and vinegar, so you’d want to reduce or skip the sweet relish and taste before adding lemon juice.
How far ahead can I make this?
Up to five days ahead is the sweet spot — the flavors are fully developed and the texture is still clean. Beyond that it’s technically safe for the week, but the garlic can start tasting a little fermented by day seven.
What burgers does this sauce actually work on?
It’s best on beef or chicken burgers where you want a creamy, spiced contrast — skip the egg in the sauce-to-burger pairing logic and think about bold toppings like crispy fried chicken, bacon, or sharp cheddar, where the tang cuts through the fat. It also works well as a spread on any burger that would otherwise use plain mayo.
Can I make a smaller batch?
Yes — the recipe scales down cleanly. Halving it gives you about two cups, which is plenty for four to six burgers. Just be precise with the lemon juice and hot sauce since small measurement errors matter more in a smaller volume.