Pickled Mustard Seeds Recipe

Cooking down whole yellow mustard seeds in seasoned vinegar simultaneously plumps them up and tames their intense burn, for a condiment or garnish that's sweet, briny, and mildly hot.

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Photograph: J. Kenji López-Alt

Why It Works

  • Blanching the mustard seeds a few times removes any potential bitterness.
  • Mustard seeds plump up when brined, giving them a caviar-like texture that pops in your mouth for little bursts of flavor.

Pickled mustard seeds make a great garnish anywhere mustard would be appropriate—on eggs, dolloped on vegetable soups, in sandwiches, on roasted meats, and in sauces and marinades. We're especially partial to using them on these extra-mustardy deviled eggs.

Recipe Facts

Active: 30 mins
Total: 60 mins
Serves: 32 servings
Makes: 2 cups mustard seeds

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Ingredients

For the Brine:

  • 175ml (about 3/4 cup) white wine vinegar

  • 125ml (about 1/2 cup) cider vinegar

  • 150ml (about 2/3 cup) water

  • 50ml (about 1/4 cup) rye whiskey (see note)

  • 2 bay leaves

  • 150g (about 3/4 cup) brown sugar

  • 10g (about 1 tablespoon) kosher salt

For the Seeds:

  • 200g (about 1 cup) yellow mustard seeds

Directions

  1. For the Brine: Combine white wine vinegar, cider vinegar, water, whiskey, bay leaves, brown sugar, and salt in a small saucepan. Set aside, stirring occasionally, until sugar is dissolved.

  2. For the Seeds: Meanwhile, place seeds in a clean saucepan and cover with cold water. Bring to a boil, then drain through a fine-mesh strainer and discard the water. Repeat until the discarded water does not taste bitter. This can take between 1 and 8 repetitions.

  3. Transfer blanched and drained mustard seeds to the pot with the brine. Bring to a boil, then reduce to a bare simmer and cook until the seeds have plumped up and the liquid has reduced by about one-third, 15 to 20 minutes. Without draining brine, transfer seeds to a sealable container, let cool at room temperature, then seal and refrigerate until ready to use. The seeds will mature in flavor over the course of a few days.

Special equipment

Fine-mesh strainer

Notes

You can omit the whiskey. The seeds can be used immediately, but will improve in flavor over time.

Make-Ahead and Storage

Pickled mustard seeds can be stored for months in a sealed container in the refrigerator.

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Nutrition Facts (per serving)
52 Calories
2g Fat
6g Carbs
2g Protein
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Nutrition Facts
Servings: 32
Amount per serving
Calories 52
% Daily Value*
Total Fat 2g 3%
Saturated Fat 0g 1%
Cholesterol 0mg 0%
Sodium 51mg 2%
Total Carbohydrate 6g 2%
Dietary Fiber 1g 3%
Total Sugars 5g
Protein 2g
Vitamin C 0mg 2%
Calcium 21mg 2%
Iron 1mg 3%
Potassium 55mg 1%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)