Name: Cucumber Mangoes
Ingredients: 2 gallons cucumbers; 2 pounds sugar; 1 small piece horseradish, grated; 1½ ounces white mustard seed; 1½ ounces black mustard seed; 1½ ounces celery seed; 5 quarts apple vinegar

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 ↓

Cucumber Mangoes

Ingredients

Directions

Prepare

Prepare the cucumbers as you would for other melons.
In a bowl, mix sugar, grated horseradish, white mustard seed, black mustard seed, and celery seed.
Stuff the cucumbers with the mixture.

Pickle

Place the stuffed cucumbers in a jar.
Pour apple vinegar over the cucumbers, sweetening to taste.

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.

Horseradish + mustardtop 1% of all pairs

Smell alikestrong

Cooked together1,832 recipes

Shared aroma: coumarin (sweet, hay).
Mustard + celerytop 2% of all pairs

Smell alikemoderate

Cooked together4,169 recipes

Shared aroma: guaiacol (smoky, sweet).
Cucumber + horseradishtop 2% of all pairs

Smell alikestrong

Cooked together640 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Cucumber + mustardtop 3% of all pairs

Smell alikestrong

Cooked together2,281 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Horseradish + celerytop 6% of all pairs

Smell alikemoderate

Cooked together835 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

Cucumbers: Form the crisp main body that absorbs the spiced sugar and vinegar.
Sugar: Adds sweetness that balances the sharpness of the vinegar.
Apple vinegar: Provides acidity that sharpens flavor and helps preserve the cucumbers.
White mustard seed: Adds sharp, pungent flavor when released into the brine.
Black mustard seed: Adds a stronger, more pungent bite than white mustard seed.
Celery seed: Contributes a warm, savory aroma that complements the cucumbers.

Swap the apple

How well each one fits the dish's main ingredients (cucumber, sugar, horseradish, mustard, celery, vinegar):

Avocadofits better
Limefits better
Lemonfits better
Applethe original

Fit is the average pairing score against cucumber, sugar, horseradish, mustard, celery, 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.