Why it works: Horseradish and mustard match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,832 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Pickle Hodgen
Ingredients
Directions
Prepare the tomatoes
Chop the green tomatoes and sprinkle them with coarse sea salt.
Let them stand overnight, then drain off the water.
Combine and pack
Add the chopped onions, chopped peppers, grated horseradish, mustard seed, ground cloves, black pepper, and dry mustard, then mix well.
Pack the mixture into a jar, filling it three-fourths full.
Top with vinegar.
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.
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Horseradish + mustardtop 1% of all pairsSmell alikestrongCooked together1,832 recipes
Shared aroma: coumarin (sweet, hay).
-
Pepper + clovetop 5% of all pairsSmell alikestrongCooked together17,451 recipes
Shared aroma: ethyl octanoate (fruity, wine).
-
Onion + mustardtop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + horseradishtop 7% of all pairsSmell alikestrongCooked together1,784 recipes
Shared aroma: coumarin (sweet, hay).
-
Horseradish + clovetop 7% of all pairsSmell alikestrongCooked together1,245 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Green tomatoes
- Form the bulk of the pickle and give it its firm, tart body.
- Coarse sea salt
- Draws water out of the tomatoes, firming them and concentrating flavor before pickling.
- Onions
- Add savory sweetness and aroma that balance the sharp vinegar.
- Horseradish
- Contributes pungent heat that mellows as the pickle sits.
- Vinegar
- Acidifies the mixture, preserving it and providing its sharp tang.
- Mustard seed
- Adds a sharp, slightly bitter pungency and crunch to the pickle.
The step that matters
Drain off the water after salting overnight. Salt pulls moisture out of the tomatoes. If the liquid is not drained well, the pickle stays watery and dilutes the vinegar, weakening both texture and preservation.
Swap the tomato
How well each one fits the dish's main ingredients (onion, pepper, horseradish, mustard, clove, vinegar):
- Shallotfits better
- Broccolifits better
- Radishfits better
- Tomatothe original
Fit is the average pairing score against onion, pepper, horseradish, mustard, clove, vinegar. 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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