Benihana Copycat Mustard Sauce (Magic Mustard

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This Benihana Mustard Sauce is so easy to make! It’s creamy, tangy, nutty, and slightly sweet, all at once. If you’ve ever been to Benihana and dipped a juicy steak or crisp grilled veggies into their hibachi dipping sauce, then you know how good this is.

I’ve tested this Benihana copycat mustard sauce multiple times to get it as close as possible to the real one. I compared flavor, texture, and consistency, and adjusted the Dijon-to-mayo ratio, the vinegar level, and the amount of sesame to match the restaurant version. By blending the sauce, toasting the sesame seeds, and letting it rest before serving, you get the silky, nutty, tangy flavor that tastes just like Benihana's Japanese Steakhouse.

Flat lay shot of a white bowl with Benihana Magic Mustard sauce.

This Benihana magic mustard recipe is simple enough to make in minutes, but it’ll definitely take you back to the sizzling table during hibachi nights. It’s amazing with grilled meats, shrimp, veggies, or even as a dipping sauce for sushi.

On top of that, this magic mustard sauce is versatile, bold, and just one of the sauces that’ll instantly become one of your favorites. This is so good, you’ll start putting them on everything!

What Does Benihana Mustard Sauce Taste Like?

Benihana’s mustard sauce is creamy, savory, a little tangy, and deeply nutty from the toasted sesame seeds. It’s not spicy, it's smooth, mild, and perfectly balanced. The blend of mayo, soy sauce, Dijon, and vinegar creates that signature flavor you get at the restaurant.

Benihana Copycat Mustard Sauce recipe ingredients

Ingredients for this Copycat Benihana Mustard Sauce recipe

Scroll down to the recipe card at the bottom of the page for detailed ingredient measurements.

Mayonnaise: is the secret to this sauce’s creamy base. It holds everything together and renders a smooth texture.
Soy sauce: adds umami, saltiness, and depth to balance the richness of the mayo. Or you can use coconut aminos.
Dijon mustard: gives the sauce that signature flavor through its perfect tangy kick.
Rice vinegar: brightens the sauce with just the right amount of acidity.
Toasted sesame seeds: has that distinct warmth, nuttiness and that authentic hibachi-style taste, so don’t skip this!
Pinch of Garlic powder: rounds out this Benihana Magic Mustard Sauce with a subtle layer of savory flavor.

Benihana Copycat Mustard Sauce recipe in a container overhead shot

How to Make Benihana Magic Mustard Sauce from scratch

Make sure to scroll down to the recipe card at the end of this post for the full step-by-step instructions on how to make this sauce.

Firstly, combine all ingredients in a food processor bowl, blender, or a small bowl.
Next, blend or whisk everything together until the mustard mixture is completely smooth and creamy. Your Benihana Copycat Mustard Sauce is ready!

Before serving, warm slightly for that true Benihana experience (just a few seconds in the microwave will do the trick!). Alternatively, you can also enjoy it cold.

Tips and Tricks for the Best Results

Toast the sesame seeds for maximum flavor (just 1–2 minutes in a dry skillet).
Blend the sauce for the smooth, velvety Benihana-style finish.
Use Japanese mayo if you have it (Kewpie gives the closest restaurant flavor).
Let it rest in the fridge so the flavors meld.
Warm before serving if you want the true Benihana experience.

Why You Need to Make This Hibachi Mustard Sauce

This easy recipe is a game-changer for spicing up your grilled chicken or hibachi vegetables.
This magic mustard will bring bold flavors with very little effort and simple ingredients.
This is the kind of sauce that’s worth prepping to transform even the simplest meals into something special.

I know you'll love this cream sauce, just like my Taco Bell Baja Sauce and Chick-Fil-A Sauce.

A wooden spoon with a scoop of Benihana Magic Mustard in it.

How to Store Benihana Mustard Sauce

Store in an airtight container in the refrigerator for up to 5 days. Stir before serving since it can settle slightly. Do not freeze the leftover sauce (the mayo base will separate once thawed at room temperature).

Frequently Asked Questions (FAQ's)

Is this the exact Benihana recipe?

While this isn’t the official restaurant recipe, it’s a really close copycat that tastes just like what you get at Benihana!

Can I make it ahead of time?

Absolutely! It actually gets better as it sits in the fridge. Just make sure you stir it before serving.

Can I substitute the mayo?

If you want a lighter version, use Greek yogurt. However, the texture and flavor will change a little.

What can I serve this with?

If you have your own hibachi grill, now’s the time to bring it out and get grilling (A regular grill works just as fine too.)! You can serve this with hibachi steak, hibachi chicken, and vegetables work too!

A piece of cooked meat being dipped into Benihana Copycat Mustard Sauce recipe

How long does it last in the fridge?

If stored in an airtight container, this sauce can last up to 5 days.

Can I freeze this sauce?

No, I don’t recommend it. Freezing this breaks its consistency, as a result, once thawed.

Can I use regular vinegar instead of rice vinegar?

You can, if that’s what’s accessible to you. But, rice vinegar gives it the perfect mellow acidity. On the other hand, white vinegar has a sharper flavor.

How do I make it spicier?

If you prefer a little heat, add a small squeeze of sriracha or a tiny pinch of cayenne pepper.

A cooked mushroom being dipped into a small white bowl with magic mustard in it.

Benihana Magic Mustard Sauce Recipe