How to Make Homemade Mustard

By Karen Gibson | Last Updated: September 13, 2017

How to Make Homemade Mustard | OhMyVeggies.com

How to Make Homemade Mustard | OhMyVeggies.com

“Whyyyy would you do that??” my friend asked pointedly, when she saw the bowl of sunshine-yellow goodness on my counter. She was — I could tell — about to jump on me for my crazy DIY ways. I didn’t have an answer that wouldn’t get me into deeper trouble. I’m a serial condiment maker. I’m that person who makes homemade salad dressings for her Caprese salads, and homemade pizza sauce for that irresistible mushroom and caramelized onion pizza.

I wished in the moment that I had a salesperson’s skills to explain why homemade mustard is just something you want to do, something whose end result is so good — more than worth the very minimal effort (seriously, minimal) — that you can’t help but do it again and again. But all I could blurt out was, “Taste it!”

Her widening eyes and second spoonful said it all. Condiments you make at home, whether salsa or pesto or BBQ sauce or mustard, just taste better. Way better. Don’t get me wrong, jarred mustard from the store is absolutely fine; I’ve certainly bought more than my share. But homemade is an elevation. There’s a brightness to it that’s always missing from commercial mustards. As a food writer, I hesitate to use that vague word “bright” to describe a flavor, but if I could pass a spoon through this screen so you could taste for yourself, you’d know exactly what I meant.

So let’s get to it, and make a super simple country-style mustard. What’s involved, you ask, wondering where the trick is? There’s no trick: It’s sooo easy. If you can measure ingredients with reasonable competence, push a button on a spice grinder, and stir liquids without splashing anything into your eye, you can make mustard. It is, I would say, the easiest of all condiments, as there’s no knife work or cooking involved, although do note that you’ll need to factor in a hands-off, 24-hour waiting period for the mustard to fully develop.

What You’ll Need:

Ingredients:
1 1/2 tablespoons yellow mustard seeds
1 1/2 tablespoons brown mustard seeds
1/3 cup mustard powder
Scant 1/3 cup cool water or beer
1 tablespoon apple cider or white vinegar
1 tablespoon honey or maple syrup (optional)
1 teaspoon kosher salt

Equipment: a spice grinder (or, for the spice grinding purist, a mortar and pestle), measuring cups and spoons, and a non-reactive bowl (e.g., ceramic, glass, or plastic, not metal).

Why It Works

Chemistry, fellow mustard lovers, it’s all about chemistry. When you crack or pulverize mustard seeds and mix them with a liquid, such as water or beer, enzymes within the seeds react and create that sinus-clearing bite we all know and love. Left to its own devices, this reaction would continue on and on until it fizzled out to flavorlessness over a period of days. Instead, we halt that process early on with an acid, such as vinegar, which freeze-frames and sets the spicy bite while at its perfect peak. Then, we season and sweeten the mustard to our liking, stash it in the fridge for a day, and — voilà! — homemade mustard.

Where Do Mustard Seeds Come from?

Without trying to sound too precious about it: Mustard seeds come from the mustard plant, which produces tasty, spicy greens that are great in salads and grow very happily in most backyards. When the plants flower, they produce seed pods that you leave on the plant to dry, then harvest. Each seed pod contains about a half-dozen seeds; each plant, 20-30 pods. Different varieties of mustard produce different types of seed: yellow (white) seeds are mild, brown and black are spicy and pungent. Mustard, which is related to broccoli, radishes, and kale, is a must-have plant in my vegetable garden. So, yes, I grow my own mustard seeds, with which I make my own mustard. Like I said, I’m that person.

Prepare the Mustard

How to Make Homemade Mustard | OhMyVeggies.com

Add both types of mustard seeds to your spice grinder, pulse three times (with a half-second pulse), then check the seeds. You’re looking for most of the seeds to be cracked in half, although there may be a good amount of the smaller brown seeds that are still whole, which is okay. If you’re not quite there, pulse again, once, and recheck.

How to Make Homemade Mustard | OhMyVeggies.com

Transfer the cracked mustard seeds to the non-reactive bowl, along with all of the mustard powder. Pour in the cool water or beer and stir to mix thoroughly.

How to Make Homemade Mustard | OhMyVeggies.com

Let the mustard rest on the counter for 10 minutes, while you measure out the other ingredients.

How to Make Homemade Mustard | OhMyVeggies.com

After 10 minutes, add the vinegar to stop the reaction and set the heat. Stir in the salt and sweetener (if using). Now, taste the mustard: It’s going to be very meh, and too liquidy, and you’ll frown and wonder why I led you astray, and possibly wave your fist forcefully in the direction where you think I live. But, just stick with me here. Cover the bowl, place it in the refrigerator, and let it be for 24 hours.

How to Make Homemade Mustard | OhMyVeggies.com

The 24-hour waiting period serves important two purposes: It lets the seasonings fully meld with the mustard, and it thickens everything nicely. Now taste again. {Angels sing and butterflies frolic.} Success!

How to Make Homemade Mustard | OhMyVeggies.com

The beautiful thing about homemade mustard is that you can customize it in endless ways by experimenting with different vinegars, or adding herbs like tarragon or dill, or spices like cardamom, paprika, or allspice. Use all mustard powder for a smooth version, or all cracked seeds for a heady stone-ground style. Add a 1/4 teaspoon of ground turmeric to recreate the bright yellow ballpark mustard of our youths.

Homemade mustard will last a very long time in the refrigerator, so once you nail down your masterpiece homemade mustard recipe, double the quantity. This recipe creates enough homemade mustard to fill a cute canning jar, like a jelly jar.

About Karen Gibson

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Comments

Sounds delicious and fun to make. One question, can you leave the salt out? I am on a low sodium diet and try not to add salt to any homemade recipes if I can get away with it. Can’t wait to try this!

What do you think about using white wine instead of the beer (or water)?

I think I need to try this, but I don’t do beer (celiac disease).

Thanks!

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