Why it works: Onion and carrot are a kitchen classic. They rank in the top 6% of all ingredient pairs, and cooks put them together in 21,601 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Sheep's Tongues with Asparagus
Ingredients
Directions
Prepare
Cut the onion and carrot into small pieces.
Sprinkle some of the vegetables in a baking dish.
Assemble and cook
Place the sheep's tongues on top of the vegetables.
Add the remaining vegetables on top of the tongues.
Pour in a little water or stock and cover.
Cream together the butter and flour.
Add the butter‑flour mixture to the dish.
Cook for 10 minutes.
Add the asparagus.
Turn the asparagus into the center of the dish.
Ensure there is just enough sauce to hold the asparagus together.
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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Onion + carrottop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Carrot + asparagustop 7% of all pairsSmell alikestrongCooked together571 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + asparagustop 9% of all pairsSmell alikestrongCooked together1,212 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + asparagustop 12% of all pairsSmell alikemoderateCooked together936 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Sheep's tongues
- The main protein, which becomes tender through slow, covered cooking in liquid.
- Butter and flour
- Creamed together to form a roux-style mixture that thickens the sauce.
- Onion and carrot
- Aromatic vegetables that flavour the cooking liquid and sauce.
- Asparagus
- Adds fresh vegetable texture and colour, held together by the sauce.
The step that matters
Ensure there is just enough sauce to hold the asparagus together. Too little liquid leaves the asparagus dry and loose, while too much thins the dish. The butter-flour mixture thickens the liquid, so the amount of sauce controls how well the asparagus holds together.
Swap the carrot
How well each one fits the dish's main ingredients (onion, butter, flour, asparagus):
- Leekfits better
- Chivefits better
- Shallotfits better
- Carrotthe original
Fit is the average pairing score against onion, butter, flour, asparagus. 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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