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To Pickle Walnuts

A method for pickling walnuts in a brine and vinegar solution.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 11 ingredients
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Why it works: Ginger and clove match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 6,038 recipes. Both carry estragole, which smells anise, licorice. The science ↓

To Pickle Walnuts

Ingredients

Directions

Brine the walnuts

  1. Gather walnuts while they are still soft enough to pierce with a pin.

  2. Make brine with 6 ounces of salt dissolved in 1 quart of water. Remove any scum from the surface of the brine.

  3. Add walnuts to the brine and stir them twice daily. Change the brine every three days.

  4. For immediate eating, leave walnuts in brine for 12 days; otherwise, drain after 9 days and let them air dry until blackened, about 12 hours.

Make the pickle

  1. Prepare the pickle by boiling ½ gallon of vinegar with 1 teaspoon salt, 2 ounces black pepper, 3 ounces ginger, 1 drachm mace, ¼ to ½ ounce cloves, and 4 ounces mustard‑seed for 5 minutes.

Pack and store

  1. Place walnuts in a stone jar and pour the hot pickle over them.

  2. Once the pickle cools, cover the jar securely and store in a dry place.

  3. Ensure walnuts are always covered with vinegar and boil any added vinegar.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Ginger + clovetop 1% of all pairs
    Smell alikestrong
    Cooked together6,038 recipes

    Shared aroma: estragole (anise, licorice).

  2. Pepper + clovetop 5% of all pairs
    Smell alikestrong
    Cooked together17,451 recipes

    Shared aroma: ethyl octanoate (fruity, wine).

  3. Onion + mustardtop 6% of all pairs
    Smell alikestrong
    Cooked together9,259 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  4. Mace + clovetop 6% of all pairs
    Smell alikelow
    Cooked together8,400 recipes

    Shared aroma: methyleugenol (clove, spice).

  5. Vinegar + mustardtop 7% of all pairs
    Smell alikemoderate
    Cooked together14,067 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Walnuts
Are the pickled food itself, softening in brine and taking on the dark colour and sharp flavour.
Sea salt
Draws water out of the walnuts and seasons them during the brining stage.
Vinegar
Acidic base of the pickle that preserves the walnuts and carries the spice flavours.
Mustard-seed
Adds pungent heat and sharpness to the pickling liquid.
Ginger
Adds warm, aromatic spice to the pickling liquid.

The step that matters

Keep walnuts fully covered with vinegar. Walnuts exposed to air can spoil and discolour, while vinegar's acidity preserves them only when they stay submerged in the liquid.

Swap the mace

How well each one fits the dish's main ingredients (walnut, vinegar, pepper, ginger, clove, onion, mustard):

  1. Allspicefits better
  2. Turmericfits better
  3. Cinnamonfits better
  4. Macethe original

Fit is the average pairing score against walnut, vinegar, pepper, ginger, clove, onion, mustard. Candidates are from the same food group and used in at least 100 recipes.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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