Name: Lyonnaise Potatoes
Ingredients: half tablespoonful of finely chopped parsley; one tablespoonful of finely chopped onion in two tablespoonfuls of butter until; two tablespoonfuls of butter until a light brown; salt; pepper; parsley

Why it works: Parsley and pepper 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 ↓

Lyonnaise Potatoes

Ingredients

half tablespoonful of finely chopped parsley
one tablespoonful of finely chopped onion in two tablespoonfuls of butter until
two tablespoonfuls of butter until a light brown
salt
pepper
parsley

Directions

Cut cold boiled potatoes into cubes, season with salt and pepper. Saute one tablespoonful of finely chopped onion in two tablespoonfuls of butter until a light brown, then add the potatoes and stir with a fork until they have absorbed all the butter ; add one- half tablespoonful of finely chopped parsley. Serve on a hot dish.

Nutrition, whole recipe (rough)

153Calories

2 gProtein

12 gFat

12 gCarbs

What these numbers assume: 5 portions

Ingredient	Portion assumed	kcal
Butter	1 tbsp (14g)	102
Onion	1 medium (110g)	44
Black Pepper	1 tsp ground (2.3g)	6
Parsley	1 tbsp chopped fresh (3.8g)	1
Salt	1 tsp (6g)	0

One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.

By Norton, Caroline Trask. 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. See the original page.

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.

Parsley + peppertop 2% of all pairs

Smell alikestrong

Cooked together34,122 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Parsley + oniontop 9% of all pairs

Smell alikemoderate

Cooked together25,843 recipes

Shared aroma: 2,4-decadienal (seaweed).
Onion + peppertop 11% of all pairs

Smell alikemoderate

Cooked together68,474 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Onion + buttertop 15% of all pairs

Smell alikemoderate

Cooked together42,912 recipes

Shared aroma: decanal (soap, orange peel).
Parsley + buttertop 15% of all pairs

Smell alikemoderate

Cooked together28,563 recipes

Shared aroma: trans-2-hexenal (green, leafy).