Mustard has a bigger role in Louisiana food than the bottle beside the sandwich might suggest.
Louisiana cooks use prepared mustard, Creole mustard, Dijon, dry mustard, and whole mustard seed in seafood sauces, remoulade, po’boys, meat dishes, dressings, marinades, spice blends, and crawfish boils.
Sometimes mustard is obvious.
Sometimes half a teaspoon disappears into a seasoning blend and quietly makes everything around it more interesting.
What Does Mustard Add to Food?
Mustard brings a sharp, pungent flavor that can cut through rich ingredients such as mayonnaise, butter, fried seafood, pork, sausage, and cream.
Its flavor comes from mustard seeds. When the seeds are crushed and combined with liquid, compounds in the seed react to produce mustard’s familiar pungency. Different seeds, liquids, grinding methods, and added seasonings create very different finished mustards.
That is why mild yellow mustard, Dijon mustard, whole-grain mustard, and spicy Creole mustard all belong to the same family while tasting noticeably different.
Louisiana Uses Mustard in Several Forms
There is no single “Louisiana mustard.”
Creole mustard has the strongest regional identity, especially around New Orleans. But Louisiana recipes also use Dijon mustard, ordinary prepared mustard, dry mustard powder, and whole mustard seeds.
A single recipe may even use more than one form. A Louisiana mustard-roasted mahi-mahi preparation, for example, combines Dijon mustard and Creole mustard in the same sauce.
Each form contributes something slightly different.
Mustard Has Deep Roots in Creole Cooking
Mustard was already well established in New Orleans cooking in the nineteenth century.
The 1885 La Cuisine Creole included a recipe for making French mustard from ground mustard, salt, garlic or tarragon, and vinegar. The same cookbook used mustard with roast meats, sandwiches, sauces, pickles, and other preparations.
An even earlier Creole Cookery Book published in New Orleans in 1885-era Creole culinary tradition used prepared mustard in mayonnaise and suggested adding red pepper when serving it with shrimp or oysters.
Mustard’s connection to Louisiana seafood sauces is therefore anything but new.
Creole Mustard Is Louisiana’s Signature Version
Creole mustard is the form most closely associated with Louisiana.
It is generally coarser and more assertive than ordinary yellow mustard, with visible mustard-seed texture and a tangy, spicy flavor. Explore Louisiana describes locally produced Creole mustard as suitable for recipes, dipping sauces, and sandwiches.
The next EatBayou article will look specifically at what makes Creole mustard different.
For this article, the important point is simpler: it is one of Louisiana’s most recognizable condiments.
Mustard Is Essential to Many Rémoulades
Few Louisiana sauces demonstrate mustard’s usefulness better than rémoulade.
Chef Donald Link’s shrimp remoulade combines mustard with mayonnaise, Creole seasoning, pickle juice, garlic, herbs, and other ingredients to create a tangy sauce for chilled Louisiana shrimp. Explore Louisiana describes mustard as one of the ingredients typically found in remoulade.
A more traditional Louisiana version from Louisiana Cookin’ uses Creole mustard with mayonnaise, horseradish, cayenne, parsley, tarragon, and lemon.
Mustard contributes both sharpness and depth while helping balance the richness of the sauce.
Mustard and Louisiana Seafood Are Natural Partners
Shrimp, crab, oysters, crawfish, and fish all pair well with mustard.
Louisiana crab cakes use Creole or whole-grain mustard inside the crab mixture alongside mayonnaise, hot sauce, lemon, green onion, parsley, garlic, black pepper, and cayenne.
Creole mustard also appears in sauces for crab beignets, where it is combined with mayonnaise, sour cream, lemon juice, and black pepper.
The mustard brings acidity and pungency without overwhelming the sweetness of the seafood.
Mustard Can Go Inside the Seafood Dish, Not Just Beside It
Mustard is not limited to dipping sauces.
Explore Louisiana’s Creole stuffed shrimp mixes Dijon mustard directly into a crab stuffing with breadcrumbs, sour cream, Tabasco, Worcestershire, lemon, cayenne, vegetables, and Creole seasoning.
Other modern Louisiana recipes use mustard in batters, crab cakes, dressings, glazes, and sauces.
It can therefore season the food itself rather than merely wait in a ramekin on the side.
Mustard on Po’boys
Mustard also belongs to Louisiana sandwich culture.
A traditional dressed po’boy usually revolves around lettuce, tomato, pickles, and mayonnaise, but Explore Louisiana notes that some po’boys may also be dressed with spicy Creole mustard.
Grilled shrimp po’boys are another example. One Louisiana version uses Creole mustard with mayonnaise, Worcestershire, horseradish, lemon juice, and Creole seasoning to make the remoulade spread on the French bread.
Mustard works particularly well with fried or grilled seafood because its acidity helps cut through fat and breading.
Mustard with Boudin
Boudin and mustard are another comfortable Louisiana pairing.
Explore Louisiana serves fried boudin balls with a simple dipping sauce made from sour cream, Creole mustard, and Cajun seasoning. The recipe allows another whole-grain spicy mustard if Creole mustard is unavailable.
The sharp mustard balances the rich pork-and-rice interior and fried crust.
The boudin does not require mustard.
But the combination has very little trouble making friends.
Dry Mustard in Cajun Seasoning
Not all mustard arrives wet.
Dry mustard, also called mustard powder or ground mustard, appears in Cajun seasoning mixtures because it can be blended evenly with other dry spices.
A Louisiana Cookin’ classic Cajun seasoning uses dry mustard with garlic powder, onion powder, paprika, black pepper, oregano, thyme, cumin, celery seed, and chipotle pepper.
Another Cajun spice mix for roast turkey includes dry mustard with garlic, onion, smoked paprika, oregano, thyme, pepper, cumin, and celery seasoning.
Like celery seed, dry mustard can contribute plenty of flavor from a very small amount.
Dry Mustard in Sauces and Rubs
Mustard powder also works especially well where liquid mustard would be inconvenient.
A Louisiana barbecue butter preparation uses dry mustard with the holy trinity, garlic, paprika, cayenne, tomato, vinegar, cane syrup, molasses, beer, wine, and butter.
A root-beer rib rub from Louisiana Cookin’ uses a full tablespoon of dry mustard with smoked paprika, garlic powder, chili powder, onion powder, salt, and black pepper. The accompanying sauce then uses Dijon mustard.
Once again, Louisiana cooking has no objection to using mustard twice when each form has a different job.
Mustard Seed in Seafood Boils
Whole mustard seed has another Louisiana role entirely.
A Louisiana Cookin’ crawfish-boil spice packet combines mustard seeds with bay leaves, thyme, coriander seed, dill seed, and cayenne. The packet simmers in the boil water with crawfish and the other ingredients.
Other Louisiana boil mixtures similarly combine mustard seed with red pepper, paprika, herbs, and aromatic spices.
Whole mustard seeds can season a large pot without turning the boil water into prepared mustard.
Nobody is boiling crawfish in a gallon of sandwich condiment.
Mustard Can Appear Three Ways at One Crawfish Boil
One modern crawfish-boil recipe illustrates how broad mustard’s role can become.
Its spice packet contains mustard seed. Its Cajun seasoning contains dry mustard. Its accompanying boil dip contains Creole mustard mixed with mayonnaise, black pepper, and smoked paprika.
Same basic ingredient family.
Three completely different jobs.
That is a good example of why “mustard in Louisiana cooking” means more than deciding which bottle belongs on the table.
Mustard in Dressings
Mustard is particularly useful in vinaigrettes and salad dressings because its sharp flavor balances oil and rich ingredients.
A contemporary Louisiana mustard dressing combines Creole mustard with olive oil, red wine vinegar, lemon zest, salt, and Creole seasoning.
Louisiana cooks also combine mustard with mayonnaise-based dressings and sauces.
The practice has historical precedent: the nineteenth-century Creole Cookery Book included mustard in its mayonnaise preparation.
So mustard’s role in Louisiana dressings spans generations rather than culinary trends.
Mustard with Pork and Game
Mustard handles rich meat especially well.
A modern Louisiana rabbit dish builds a sauce from Creole mustard, butter, onion, white wine, chicken broth, cream, parsley, and thyme.
Louisiana barbecue recipes also pair mustard with pork, cane sweetness, vinegar, smoke, and chile seasoning. Dry mustard works naturally in rubs, while prepared mustard can bring tang to sauces and glazes.
That sharpness helps keep rich meat from tasting flat or heavy.
Mustard and Cane Syrup Work Together
Louisiana cooking often enjoys combining sweet and sharp flavors.
A bacon-wrapped oyster recipe from Louisiana Cookin’ mixes cane syrup with dry mustard, Creole seasoning, rosemary, and red pepper for the glaze. A separate dipping sauce combines Creole mustard with mayonnaise, vinegar, green onion, and more Creole seasoning.
Cane syrup brings sweetness.
Mustard pushes back.
Neither side has to surrender.
Creole Mustard vs. Dijon
Louisiana recipes use both, and they are not identical.
Dijon is generally smooth and sharp, while Creole mustard usually has a coarser texture and distinctly Louisiana association. Some recipes choose one; others deliberately combine them.
The mustard-roasted mahi-mahi example uses equal amounts of Dijon and Creole mustard in a creamy seafood sauce.
The point is not that one is more authentic in every situation.
They provide different textures and flavor profiles.
What About Yellow Mustard?
Ordinary yellow prepared mustard also has a place in Louisiana home cooking.
It can appear on sandwiches, hot dogs, burgers, barbecue, potato salad, marinades, and everyday sauces. It is typically milder than Creole or Dijon mustard, which can be useful when the cook wants acidity and mustard flavor without much bite.
Louisiana cuisine is not limited to specialty ingredients.
Sometimes the mustard in somebody’s refrigerator is simply the mustard that goes into dinner.
Mustard Does Not Always Mean Creole Mustard
This is worth emphasizing for old family recipes.
If a handwritten recipe from Louisiana simply says mustard, that does not automatically prove the cook meant Creole mustard. The intended product may depend on the recipe, time period, family, and what was normally kept in that kitchen.
Historic New Orleans cookbooks used terms such as “made mustard” and “French mustard.” La Cuisine Creole even provided instructions for making mustard from ground mustard, salt, garlic or tarragon, and vinegar.
Context matters.
Mustard Greens Are a Different Use of the Plant
Louisiana and the broader South also eat mustard greens.
Those are the leafy portions of mustard plants, cooked as a vegetable rather than used as the seed-based condiment discussed in most of this article. Mustard greens have their own peppery character and belong to the Southern tradition of cooked greens.
They are related to the condiment.
They are not interchangeable with it.
Putting three tablespoons of mustard greens into remoulade will answer a question nobody asked.
Is Mustard Cajun or Creole?
Both traditions use it, although Creole mustard has an especially strong association with New Orleans and Creole cooking.
Historical Creole cookbooks document mustard in sauces, mayonnaise, sandwiches, pickles, meat dishes, and seafood accompaniments. Modern Cajun recipes use dry mustard in seasoning mixtures and barbecue preparations, while mustard seed appears naturally in seafood-boil seasoning.
It therefore makes more sense to consider mustard a broadly useful Louisiana ingredient.
The particular form depends on the dish.
Mustard Is Good at Cutting Richness
The pattern becomes obvious when looking at where mustard appears most often.
Fried seafood.
Boudin balls.
Cream sauces.
Mayonnaise-based remoulade.
Pork.
Crab cakes.
Oysters.
These foods tend to be rich, fatty, or deeply savory. Mustard’s pungency and acidity provide contrast, which is why a relatively small amount can make the entire dish taste brighter.
It does not have to become the dominant flavor to earn its place.
Which Mustard Should You Keep in a Louisiana Pantry?
For a well-rounded Louisiana pantry, several forms are useful.
Creole mustard handles remoulade, dipping sauces, sandwiches, seafood, and dressings. Dijon works in sauces, marinades, and preparations requiring a smoother mustard. Dry mustard belongs in rubs and seasoning blends, while whole mustard seed can go into boils and pickling mixtures.
You do not need every mustard ever manufactured.
But Louisiana cooking provides enough uses that one lonely yellow squeeze bottle may eventually want backup.
More Than a Condiment
Mustard in Louisiana cooking is not just something spread on bread.
It appears in documented nineteenth-century Creole recipes and continues through modern remoulade, boudin dips, crab cakes, crawfish boils, seafood sauces, barbecue, spice blends, vinaigrettes, and po’boys.
Sometimes Louisiana uses the seed.
Sometimes the powder.
Sometimes a smooth prepared mustard.
And sometimes the coarse, spicy version that became distinctly associated with the state.
That one deserves a closer look next.
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