Why it works: Mustard and vinegar are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 14,067 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Sweet Bread Salad
Ingredients
Directions
Prepare the sweetbreads
Boil the sweetbreads in salted water and remove the skin.
Make the custard
In a bowl, beat the egg yolks with salt, pepper, sugar, and melted butter.
In a saucepan, combine vinegar and mustard, and bring to a boil.
Pour the hot mixture into the egg yolks, then add the milk.
Return the mixture to a double boiler and cook until thickened like custard.
Finish and serve
Just before serving, fold in the cream and green peas.
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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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
-
Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 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
- Eggs
- Egg yolks set as they heat, thickening the custard into a smooth, spoonable base.
- Sweetbreads
- Form the main body of the salad, offering a soft, tender texture.
- Vinegar
- Adds sharp acidity that balances the richness of the eggs and butter.
- Butter
- Adds fat that enriches the custard and gives it a smooth, rounded mouthfeel.
- Cream
- Adds richness and lightness when folded into the thickened custard.
- Sugar
- Adds sweetness that softens the sharpness of the vinegar and mustard.
The step that matters
Cooking the custard in the double boiler. Egg proteins set gently at moderate heat, so the custard thickens smoothly. Too much heat makes the eggs curdle into lumps, so keep the water below a hard boil and stir often.
Swap the peas
How well each one fits the dish's main ingredients (egg, sugar, mustard, butter, cream, vinegar, pepper):
- Almondfits better
- Chestnutfits better
- Sesamefits better
- Peasthe original
Fit is the average pairing score against egg, sugar, mustard, butter, cream, vinegar, pepper. 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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