Name: Green Tomato Pickles
Ingredients: ½ bushel green tomatoes, sliced; 1 ounce whole cloves; 1 ounce white mustard seed; 1 ounce allspice; ½ ounce cayenne pepper; 1 pound sugar; 3 tablespoons ginger; 6 onions; vinegar (enough to cover the tomatoes)

Why it works: Clove and allspice match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 7,874 recipes. Both carry estragole, which smells anise, licorice. The science ↓

Green Tomato Pickles

Ingredients

Directions

In a large pot, combine the sliced green tomatoes, whole cloves, white mustard seed, allspice, cayenne pepper, sugar, ginger, and onions.
Add enough vinegar to cover the tomatoes.
Place the pot on the stove and heat until scalding, but do not let it boil, for about one hour.

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.

Clove + allspicetop 1% of all pairs

Smell alikestrong

Cooked together7,874 recipes

Shared aroma: estragole (anise, licorice).
Clove + gingertop 1% of all pairs

Smell alikestrong

Cooked together6,038 recipes

Shared aroma: estragole (anise, licorice).
Allspice + gingertop 1% of all pairs

Smell alikestrong

Cooked together2,620 recipes

Shared aroma: estragole (anise, licorice).
Mustard + allspicetop 2% of all pairs

Smell alikestrong

Cooked together1,928 recipes

Shared aroma: methyleugenol (clove, spice).
Clove + peppertop 5% of all pairs

Smell alikestrong

Cooked together17,451 recipes

Shared aroma: ethyl octanoate (fruity, wine).

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

What each ingredient does

Green tomatoes: Provide the main body and bulk of the pickle, softening while they absorb the spiced vinegar.
Vinegar: Provides the acidity that preserves the pickle and gives it its sharp flavor.
Sugar: Balances the sharpness of the vinegar and spices with sweetness.
Onions: Add savory depth and aromatic sweetness as they soften in the brine.
Cayenne pepper: Adds heat that builds as the pickle sits.

The step that matters

Heating without boiling. Holding the mixture at scalding rather than a rolling boil heats the tomatoes through and softens them while keeping them intact. Boiling would break them down more and can make the texture mushy and the vinegar taste harsher.

Swap the tomato

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

Horseradishfits better
Shallotfits better
Carrotfits better
Tomatothe original

Fit is the average pairing score against clove, mustard, allspice, pepper, sugar, ginger, onion. 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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Green Tomato Pickles