Food EditionCookAmericanSideClassic Beer Mustard
24 hr 30 minEasyServes 1 cup
American · Side

Classic Beer Mustard

Soak yellow and brown mustard seeds in a room-temperature stout or porter for twenty-four hours before grinding them to a coarse paste with vinegar and salt. This method yields a thick, sharp condiment that balances the malt of the beer with the pungent bite of the seeds.

Total time
24 hr 30 min
Hands-on
15 min
Serves
1 cup
Difficulty
Easy
Before you start

Patience dictates the texture

The mustard seeds need the full day to soften in the liquid; trying to rush this process results in a gritty, brittle texture that refuses to bind properly.

  • glass jar with a tight-fitting lid
  • immersion blender or mortar and pestle
  • fine-mesh sieve
Ingredients

What goes in.

  • 1/2 cupyellow mustard seeds
  • 1/2 cupbrown mustard seeds
  • 1 cupstout or porter beer, flat
  • 2 tbspapple cider vinegar
  • 1 tspkosher salt
  • 1 tsphoney
The key technique

The Long Soak

Submerging the seeds in beer for twenty-four hours is not just for flavor; the liquid penetrates the seed coats, allowing them to release their enzymes and thicken naturally when crushed.

Step by step

The method.

  1. Combine seeds and beer

    Add the yellow and brown mustard seeds to the glass jar and pour the beer over them. Ensure all seeds are submerged. Cover tightly and let sit at room temperature for 24 hours.

  2. Incorporate flavorings

    After the soak, add the vinegar, salt, and honey directly into the jar.

  3. Process the mixture

    Use an immersion blender to pulse the mixture until you reach your desired consistency. Keep it slightly coarse for texture, or blend until smooth if you prefer a tighter paste.

  4. Mellow the heat

    Transfer the mustard to a clean container and refrigerate for at least 48 hours before using. This resting period allows the intense heat to subside into a balanced, complex bite.

Variations

Other turns to take.

Spiced Mustard

Add half a teaspoon of toasted, ground coriander or fennel seeds during the blending step.

Herbed Mustard

Fold in a tablespoon of finely minced fresh tarragon or chives just before moving the finished mustard to the refrigerator.

Tips & troubleshooting

When it doesn't go to plan.

Tip

Use a flat beer to ensure the carbonation does not interfere with the mixing process.

Tip

Brown mustard seeds are significantly spicier than yellow ones; adjust the ratio if you prefer a milder condiment.

Tip

If the mustard becomes too thick after resting in the fridge, whisk in a tablespoon of warm water to loosen it.

Questions

The ones that keep coming up.

Why does the mustard taste bitter at first?

The fresh enzymes in mustard seeds are extremely sharp and bitter immediately after grinding. The resting period in the refrigerator is essential for the flavors to stabilize and mellow.

How long will this stay good?

Because of the high acidity from the vinegar, this mustard will keep in the refrigerator for up to three months.

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