Name: Soup
Ingredients: fresh meat; bones; cold water; seasoning (pepper, celery, bacon, parsley); vegetables; croutons or crackers

Why it works: Celery and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 6,810 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Soup

Ingredients

Directions

Cut the fresh meat into small pieces and break or saw the bones.
Place meat and bones in cold water for several hours.
Put on the range and allow to simmer for about six hours.
After two hours, remove the meat before it becomes hard.
Cool the meat for use in hash or meatballs.
Skim the grease from the top and pour the stock into another container to cool.
Clean the stock boiler and start a new batch.

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.

Celery + parsleytop 1% of all pairs

Smell alikestrong

Cooked together6,810 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Pepper + parsleytop 2% of all pairs

Smell alikestrong

Cooked together34,122 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Pepper + celerytop 5% of all pairs

Smell alikestrong

Cooked together16,012 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Meat + celerytop 18% of all pairs

Smell alikelow

Cooked together1,880 recipes

Shared aroma: guaiacol (smoky, sweet).
Meat + peppertop 19% of all pairs

Smell alikelow

Cooked together8,777 recipes

Shared aroma: 2,4-decadienal (seaweed).