Homemade Chinese Hot Mustard in Minutes

The first time I ordered Chinese takeout after moving to a new city, I eagerly opened the bag to find something missing it was those little packets of fiery hot mustard that I’d always considered essential for properly enjoying egg rolls. When I called the restaurant to inquire, they apologetically explained they no longer offered it, citing cost-cutting measures in their takeout operations.

That weekend, I experimented with dry mustard powder and some basic ingredients in my kitchen. The result was revelatory, not only was it incredibly easy to make, but my homemade version delivered a sinus-clearing heat that put those restaurant packets to shame!

Chinese hot mustard, dumplings, and egg rolls on a platter

This post contains affiliate links. As an Amazon Associate, I earn from qualifying purchases.

Why This Recipe Works

This Chinese hot mustard recipe achieves its signature sinus-clearing heat through the chemical reaction that occurs when ground mustard seeds meet hot water. The heat activates the compounds in the mustard powder without any additional ingredients to dampen its natural fire. Unlike store-bought versions that contain vinegar (which stabilizes but reduces heat), this recipe maximizes potency by using only water. The tiny addition of oil helps smooth the texture without compromising the heat, while a pinch of salt enhances the flavor profile. By making it fresh and serving immediately, you experience the mustard at its peak potency, something impossible to achieve with pre-packaged versions.

Chinese hot mustard, egg rolls, and spring rolls on a white platter

Chinese Hot Mustard Recipe Ingredients

Notice there is no horseradish in this recipe. The heat comes from dry mustard powder. While you might think this is horseradish from taste, it is not.

  • Salt – Enhances flavor and balances the sharp heat
  • Dry mustard powder – Provides the intense, sharp heat that defines Chinese hot mustard
  • Water – Activates the natural compounds in mustard powder for maximum heat
  • Oil – Creates a smoother consistency and helps bind the sauce

Ingredient notes

The key to powerful Chinese hot mustard is using very hot water and serving it fresh. The heat diminishes within hours of preparation, so make it right before serving for the most authentic experience. While traditional Chinese mustard powder (純芥末粉) is ideal, it can be not easy to find in typical grocery stores. High-quality English mustard powder like Colman’s makes an excellent substitute, offering the right balance of heat and flavor that closely approximates authentic Chinese hot mustard.

For the most potent result, use water that has just reached a boil—the heat activates the natural compounds in the mustard powder that create its signature sinus-clearing quality. Never microwave the prepared mustard, as the heat will degrade the allyl isothiocyanate compounds responsible for its spiciness.

If you find your first batch too intensely hot (it can be surprisingly powerful!), you have two options: dilute it slightly with additional water or let it sit covered at room temperature for 1-2 hours before serving. This natural resting period will tame the intensity while still maintaining excellent flavor. Remember that everyone’s tolerance for heat varies, so consider adjusting the concentration for your guests accordingly.

How to Make Chinese Hot Mustard

  1. In a bowl, whisk boiling water and dry mustard together until smooth.
  2. Add oil and salt. Whisk to combine.

Recipe Variations

If you use this recipe for cooking, try adding caraway, celery, coriander, dill, honey, onion powder, oregano, ground pepper, or thyme for added depth.

Chinese dumplings, egg rolls, and hot mustard on a white plate

Chinese hot mustard, dumplings, and egg rolls on a platter

Authentic Chinese Hot Mustard: Restaurant-Quality in 5 Minutes

Make spicy, powerful Chinese hot mustard at home with just 4 ingredients. Perfect for egg rolls, dumplings, and adding heat to any dish.
5 from 4 votes
Print Pin Rate Add to Collection
Course: Sauces
Cuisine: Chinese
Keyword: Hot Mustard
Prep Time: 10 minutes
Cook Time: 10 minutes
Total Time: 20 minutes
Servings: 8
Calories: 8kcal

Ingredients

  • 1/4 cup boiling water
  • 1/4 cup dry mustard Colemans is recommended
  • 1/2 teaspoons salt
  • 2 teaspoons vegetable oil

Instructions

  • Using a whisk, stir boiling water into mustard until smooth. Add the salt and oil and mix well.

Video

Nutrition

Calories: 8kcal | Carbohydrates: 0g | Protein: 0g | Fat: 1g | Saturated Fat: 0g | Cholesterol: 0mg | Sodium: 145mg | Sugar: 0g

Storage and Make-Ahead Tips

  • Optimal serving: Use immediately after the 5-minute standing time for maximum heat
  • Short-term storage: Can be kept at room temperature for up to 4 hours, though heat will gradually diminish
  • Refrigeration: Store covered in refrigerator for up to 2 days, but note that heat level will decrease significantly
  • Not suitable for freezing: The texture and flavor degrade when frozen
  • Reviving: Cannot fully restore original heat once diminished, so fresh preparation is recommended

Love Chinese food? Try these recipes!

Hot and Spicy Sauces

Be sure to check out more of my easy Chinese recipes and the best sauce recipes right here on CopyKat.com!

About Stephanie Manley

Stephanie Manley is the creator of CopyKat.com. She has been recreating copycat recipes since 1995. Learn more about Stephanie Manley.

REVEALED: Copycat Secrets for 2025

free email bonus

Yes, you CAN make it at home! I'll show you how.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.

Reader Interactions

Comments

  1. Cookie

    Do you heat up the white wine or vinegar. The recipe states boiling water, but I didn’t see any note about boiling the wine or vinegar.

  2. Sally

    5 stars
    This is the perfect recipe for hot mustard! It’s super hot and really easy to prepare. How long do you think I can keep it in the refrigerator?

5 from 4 votes (2 ratings without comment)

Leave a Reply

Your email address will not be published. Required fields are marked *

Recipe Rating




homemade Olive Garden Asiago Torgelloni Alfredo with chicken on a plate

Copycat Recipe Secrets for 2025

REVEALED:

Yes, you CAN make it at home! 
I'll show you how.

FREE EMAIL BONUS