Why it works: Turnip and leek match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,046 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Mashed Potatoes
Ingredients
Directions
The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the broth
Wash the sheep's head and place it in a stewpan.
Add the onions, turnip, carrot, leek, Scotch barley, salt, sugar, pepper, and herbs.
Pour in 2 quarts of water and stir the barley frequently while skimming.
Simmer for 2.5 hours.
Remove the head and skin the tongue.
Make the potato base
Mash the potatoes with a wooden spoon.
Mix in the dripping and boiling milk.
Place the mashed potatoes on a flat dish.
Bake and serve
Put the head on top of the mashed potatoes.
Sprinkle with salt, pepper, and bread crumbs.
Dot with small pieces of dripping.
Bake in a 400°F (200°C) oven for 30 minutes.
Serve in the same dish, ensuring both the potatoes and head are browned.
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.
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Turnip + leektop 1% of all pairsSmell alikestrongCooked together1,046 recipes
Shared aroma: coumarin (sweet, hay).
-
Carrot + parsleytop 1% of all pairsSmell alikestrongCooked together8,053 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Leek + barleytop 1% of all pairsSmell alikestrongCooked together142 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
-
Turnip + carrottop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
-
Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 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
- Sheep's head
- Forms the main meat, cooked until tender in the simmering broth.
- Potatoes
- Form the mashed base that holds the head and browns in the oven.
- Dripping
- Adds fat and richness to the mashed potatoes and browns the top.
- Scotch barley
- Thickens the broth and adds body as it cooks and releases starch.
- Milk
- Adds moisture and softness to the mashed potatoes.
The step that matters
Browning the head and potatoes. Browning depends on surface dryness and direct oven heat. Dotting with dripping and sprinkling with crumbs helps the surface brown through Maillard reactions, while moisture left on the surface can steam it pale.
Swap the onion
How well each one fits the dish's main ingredients (turnip, carrot, leek, barley, sugar, pepper, parsley):
- Parsnipfits better
- Beetrootfits better
- Shallotfits better
- Onionthe original
Fit is the average pairing score against turnip, carrot, leek, barley, sugar, pepper, parsley. 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.
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