Whip up a batch of spicy and zesty Horseradish Mustard in only 5 minutes. Only 3 ingredients stand between you and this spicy mustard sauce.
Ingredients
There are only a few simple ingredients to make this horseradish mustard recipe, many of which you may already have on hand if you make pickled mustard seeds:
- Dijon Mustard
- Horseradish
- Brown Sugar
If you have any leftover horseradish try making my Horseradish Butter.

Substitution Options
Here are a few substitution options, if needed, when making mustard with horseradish.
Horseradish – If you don’t have access to fresh horseradish or prepared horseradish, you can use horseradish sauce. It’s not as potent, so you may need to add a bit more to increase the spice factor.
Mustard – If you don’t have dijon mustard, go ahead and use spicy brown mustard in equal parts.
Check out the comprehensive list of Horseradish Substitutes we pulled together, including ratio recommendations.
How To Make
Grate The Horseradish – If using fresh horseradish, peel and grate it.
Blend The Ingredients – Add all the ingredients to a mixing bowl and stir to combine.
Adjustments – Taste and add more horseradish, mustard or brown sugar, to taste.

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Uses For Horseradish Mustard Sauce
Horseradish mustard sauce can be used in so many ways! Pretty much anywhere mustard or horseradish sauce goes, horseradish mustard can go. It would be fantastic in this Yum Yum Chicken. It adds a depth of flavor to any dish:
- Smoked Kielbasa and Smoked Sausage – Makes a great dipping sauce.
- Beef Recipes – horseradish isn’t just for Prime Rib. Serve it with Smoked Beef Tenderloin, or Sous Vide Filet Mignon.
- Smoked Deviled Eggs – swap out yellow mustard for horseradish mustard.
- Seafood Sauce – Makes a great dipping sauce for crab legs, baked lobster tails and salmon.
- Potato Salad (Ensalada de Papa) or Macaroni Salad – use in place of yellow mustard.
- Sandwich Spread – Lather it on a Prime Rib Sandwich or Tri Tip Sandwich.
- Corned Beef Recipes – Sous Vide Corned Beef or Smoked Corned Beef.
- Salad Dressing – Mix with olive oil, vinegar, and herbs to create a unique salad dressing.
- Charcuterie Platter – This sauce pairs well with sharp and aged cheeses.
- Burger Condiment – Elevate the taste of hamburgers by adding horseradish mustard.

Darcey’s Tips For Success
- For a mild mustard horseradish sauce, stick with the prepared horseradish as fresh is twice as spicy.
- If you’re into beer, try adding a bit to make a beer version.
- Experiment with different rations of the mustard vs. horseradish.
- The flavor of the sauce will mellow with time.
- Store the horseradish mustard in the refrigerator for up to two weeks.
Similar Recipes
- Prepared Horseradish vs Horseradish Sauce
- Substitute For Dijon Mustard
- Horseradish Sauce For Beef Tenderloin
- Horseradish Mashed Potatoes
- Horseradish Aioli
- Horseradish Butter

Horseradish Mustard
Ingredients
- ½ cup dijon mustard
- 3 tbsp fresh or prepared horseradish (*Note 1)
- 1 tsp brown sugar
Instructions
- Add all the ingredients to a small mixing bowl and stir to combine.
- Taste and add more mustard, horseradish sauce or brown sugar, to taste.

