Name: Pepper Hash
Ingredients: peppers; coarse sea salt; water; white cabbage; mustard seed; vinegar

Why it works: Cabbage and mustard match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 1,645 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Pepper Hash

Ingredients

Directions

Soak the peppers in strong saltwater for three days.
Finely chop the soaked peppers.
Chop the white cabbage and sprinkle with salt; let it stand for 2-3 hours.
Squeeze out excess water from the cabbage.
Mix the chopped cabbage and peppers together.
Sprinkle mustard seed over the mixture.
Boil the vinegar and pour it over the mixture; seal it up.

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.

Cabbage + mustardtop 3% of all pairs

Smell alikestrong

Cooked together1,645 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Pepper + cabbagetop 5% of all pairs

Smell alikemoderate

Cooked together4,081 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Mustard + vinegartop 7% of all pairs

Smell alikemoderate

Cooked together14,067 recipes

Shared aroma: isobutyraldehyde (malty, green).
Pepper + mustardtop 9% of all pairs

Smell alikemoderate

Cooked together15,430 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Cabbage + vinegartop 13% of all pairs

Smell alikemoderate

Cooked together2,924 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).