Why it works: Walnut and parsley match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 865 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Boiled Tongue
Ingredients
Directions
Cook the tongue
Place the fresh tongue in boiling water.
Boil for 2 hours.
Add the salt.
Continue boiling until a fork slips in easily.
Remove as much water as possible without burning the tongue.
Skim off the floating fat.
Make the sauce
Add the sliced onion, vinegar, and walnut catsup.
Simmer for a few moments.
Remove the tongue.
Peel off the skin.
Serve
Place the tongue on a hot platter.
Pour over some of the hot liquid thickened with flour.
Serve hot.
For cold serving, place in a deep dish, cover with liquid, and cool quickly.
When ready to serve cold, remove and wipe dry.
Slice and garnish with parsley.
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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Walnut + parsleytop 7% of all pairsSmell alikestrongCooked together865 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Flour + parsleytop 12% of all pairsSmell alikemoderateCooked together16,675 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Walnut + flourtop 12% of all pairsSmell alikemoderateCooked together5,873 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Fresh tongue
- Forms the main meat, which becomes tender through long simmering in water.
- Vinegar
- Adds acidity that brightens the flavour of the rich meat and liquid.
- Walnut catsup
- Contributes a concentrated savoury, tangy flavour to the cooking liquid.
- Flour
- Thickens the hot cooking liquid into a light sauce for pouring over the tongue.
The step that matters
Continue boiling until a fork slips in easily. Tongue is a tough, muscular meat, and only long, gentle simmering breaks down its connective tissue. Stopping early leaves it firm and chewy, while a hard boil can toughen and dry the meat.
Swap the onion
How well each one fits the dish's main ingredients (vinegar, walnut, flour, parsley):
- Shallotfits better
- Lettucefits better
- Beetrootfits better
- Onionthe original
Fit is the average pairing score against vinegar, walnut, flour, 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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