Name: Liver and Bacon
Ingredients: Bacon; Liver (sliced ½ inch thick); Coarse sea salt; Black pepper; Flour; Parsley (for garnish)

Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Liver and Bacon

Ingredients

Directions

Cook the bacon and place it on a platter in a warming oven.
Cover the liver slices with boiling water and let them stand for 5 minutes.
Drain the liver, then remove the veins and membrane.
Sprinkle the liver with salt and pepper, then roll it in flour.
Sauté the liver in the bacon fat over moderate heat.
Serve the liver with the bacon and garnish with parsley.

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.

Pepper + parsleytop 2% of all pairs

Smell alikestrong

Cooked together34,122 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Flour + parsleytop 12% of all pairs

Smell alikemoderate

Cooked together16,675 recipes

Shared aroma: isobutyraldehyde (malty, green).
Liver + parsleytop 17% of all pairs

Smell alikelow

Cooked together1,095 recipes

Shared aroma: alpha-pinene (pine, turpentine).
Pepper + flourtop 19% of all pairs

Smell alikemoderate

Cooked together50,459 recipes

Shared aroma: isobutyraldehyde (malty, green).
Liver + peppertop 21% of all pairs

Smell alikemoderate

Cooked together2,375 recipes

Shared aroma: 2-nonenal (fatty, green).