Why it works: Potato and parsley are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 2,855 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
To Boil a Smoked Tongue
Ingredients
Directions
Prepare
Soak the smoked tongue in cold water overnight, or for 24 hours if it is very hard and dry.
Place the tongue in a pot filled with cold water.
Cook
Heat over low heat for 1 hour before bringing to a boil.
Simmer for 3.5 to 4 hours, until tender throughout.
Serve
Do not cut the tongue in half; serve whole with mashed potatoes and garnish with parsley.
For a decorative presentation, rub the tongue with egg yolk, sprinkle with bread crumbs, baste with butter, and brown it before the fire.
Cover the root with parsley and serve with slices of currant jelly if desired.
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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Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Egg + breadtop 13% of all pairsSmell alikemoderateCooked together22,662 recipes
Shared aroma: (e)-2-octenal (fatty, green).
-
Parsley + buttertop 15% of all pairsSmell alikemoderateCooked together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Smoked tongue
- Main protein; long simmering breaks down connective tissue so the meat becomes tender.
- Egg yolk
- Brushed on the surface to give a glossy, browned finish when heated.
- Bread crumbs
- Coating that forms a crisp, golden crust on the outside.
- Butter
- Fat that carries browning and adds richness to the coated surface.
The step that matters
Simmer gently until tender throughout. Tongue is a tough, collagen-rich muscle. A low, steady simmer over several hours slowly converts collagen to gelatin, while a hard boil can toughen the outer meat and leave the center firm.
Swap the currant
The recipe marks currant as optional. How well each one fits the dish's main ingredients (potato, parsley, egg, bread, butter):
- Lemonfits better
- Figfits better
- Avocadofits better
- Currantthe original
Fit is the average pairing score against potato, parsley, egg, bread, butter. 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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