Why it works: Parsley and celery match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 6,810 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Creamed Sweetbreads
Ingredients
Directions
Prepare the sweetbreads
Soak the sweetbreads in cold water for 1 hour.
Remove all fat and skin from the sweetbreads.
Cover the sweetbreads with boiling salted water.
Add onion, bay leaf, parsley, and celery.
Cover and simmer for 20 to 30 minutes.
Drain the sweetbreads.
Cool them in cold water.
Pick the sweetbreads into tiny pieces.
Discard the skin.
Make the cream sauce
Melt 2 tablespoons of butter and 2 tablespoons of flour for each pint of sweetbreads until smooth.
Add 1 cup of rich milk and stir constantly until it bubbles.
Stir in ¼ teaspoon of salt and four shakes of white pepper.
Combine and serve
Add the sweetbreads.
Stir until hot.
Serve immediately.
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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Parsley + celerytop 1% of all pairsSmell alikestrongCooked together6,810 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 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
- Sweetbreads
- Form the main body of the dish, giving it a tender, delicate texture once picked into pieces.
- Butter
- Forms the fat base with flour that begins the smooth, thickened sauce.
- Flour
- Thickens the butter and milk into a smooth white sauce that holds the sweetbreads.
- Rich milk
- Provides the liquid and creaminess that turns the roux into a pourable sauce.
The step that matters
Make the cream sauce smooth. Flour must be fully blended into the melted butter before milk is added, and milk must be stirred constantly as it heats. Otherwise lumps form and the sauce scorches or thickens unevenly.
Swap the white pepper
How well each one fits the dish's main ingredients (onion, parsley, celery, butter, flour, milk):
- Thymefits better
- Capersfits better
- Tarragonfits better
- White pepperthe original
Fit is the average pairing score against onion, parsley, celery, butter, flour, 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.
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