Name: To Dress Liver and Lights
Ingredients: equal quantity of liver and lights; 1-2 tablespoons of the water they were boiled in; 1 tablespoon butter; 1 tablespoon flour; salt to taste; pepper to taste

Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

To Dress Liver and Lights

Ingredients

Directions

Prepare

Half boil the liver and lights.
Cut them into medium-sized pieces.

Cook and serve

Add the boiling water, butter, flour, salt, and pepper.
Simmer for ten minutes.
Serve hot.

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.

Butter + flourtop 12% of all pairs

Smell alikelow

Cooked together124,287 recipes

Shared aroma: isobutyraldehyde (malty, green).
Flour + peppertop 19% of all pairs

Smell alikemoderate

Cooked together50,459 recipes

Shared aroma: isobutyraldehyde (malty, green).
Liver + buttertop 19% of all pairs

Smell alikemoderate

Cooked together2,065 recipes

Shared aroma: guaiacol (smoky, sweet).
Liver + peppertop 21% of all pairs

Smell alikemoderate

Cooked together2,375 recipes

Shared aroma: 2-nonenal (fatty, green).
Butter + peppertop 21% of all pairs

Smell alikemoderate

Cooked together85,593 recipes

Shared aroma: trans-2-nonenal (cardboard, fatty).

Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

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

What each ingredient does

Liver: Forms the main body of the dish, giving it a firm, meaty texture when simmered.
Lights: Adds bulk and a soft, tender texture to the dish as it simmers.
Butter: Adds fat for richness and a smoother mouthfeel to the cooking liquid.
Flour: Thickens the cooking liquid into a light gravy as it simmers.

“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.