Name: Parsnips-to Mash
Ingredients: 4 parsnips; ¼ teaspoon pepper; ¼ teaspoon salt; 2 tablespoons butter; a few drops of vinegar; optional: 1 tablespoon tomato; ½ cup milk; 1 slice toast

Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Parsnips-to Mash

Ingredients

Directions

Prepare the parsnips

Wash and boil the parsnips until tender.
Scrape the parsnips clean and mash them thoroughly with a fork.

Heat and serve

In a small saucepan, combine the mashed parsnips with butter, pepper, salt, and vinegar. Stir over low heat until heated through.
Serve hot, optionally topped with tomato instead of vinegar.

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 + milktop 7% of all pairs

Smell alikemoderate

Cooked together81,283 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Pepper + tomatotop 7% of all pairs

Smell alikemoderate

Cooked together17,923 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Parsnip + peppertop 9% of all pairs

Smell alikemoderate

Cooked together1,109 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Parsnip + tomatotop 12% of all pairs

Smell alikemoderate

Cooked together134 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Pepper + vinegartop 14% of all pairs

Smell alikemoderate

Cooked together27,814 recipes

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

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

What each ingredient does

Parsnips: Form the main body of the dish, becoming soft and mashable when boiled.
Butter: Adds fat and richness, giving the mash a smoother, silkier texture.

Swap the tomato

The recipe marks tomato as optional. How well each one fits the dish's main ingredients (parsnip, pepper, butter, vinegar, milk):

Capsicumfits better
Potatofits better
Carrotfits better
Tomatothe original

Fit is the average pairing score against parsnip, pepper, butter, vinegar, milk. Candidates are from the same food group and used in at least 100 recipes.

“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.