Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Asparagus Rolls
Ingredients
Directions
Prepare the rolls
Remove the crust from the bottom of each roll and scoop out the inside.
Fry the rolls in hot fat or crisp them in the oven.
Make the asparagus filling
Boil the asparagus until tender, then cut off the tips and keep them hot.
Rub the stalks through a fine sieve to make a puree.
In a saucepan, heat the butter, stir in the flour, and cook slightly.
Add the milk and stir until boiling.
Mix in the asparagus puree and egg yolks, season with salt and pepper.
Stir over low heat until the mixture thickens, but do not let it boil.
Assemble and serve
Fill the rolls with the mixture, piling it high, and garnish with asparagus tips.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Asparagus + peppertop 10% of all pairsSmell alikemoderateCooked together1,968 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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Asparagus + flourtop 12% of all pairsSmell alikemoderateCooked together936 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 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
- Asparagus
- Provides the main flavour and, pureed, the body of the filling.
- Butter
- Enriches the sauce and carries flavour, with the flour forming a base for it.
- Flour
- Thickens the butter and milk into a smooth white sauce.
- Milk
- Forms the liquid of the sauce, giving it a creamy moisture.
- Egg yolks
- Thicken the warm sauce as it heats and add richness to the filling.
The step that matters
Thickening the filling over low heat. Egg yolks set when heated, so if the mixture boils it can curdle and turn grainy. Stirring over low heat thickens it smoothly without scrambling the eggs.
Swap the asparagus
How well each one fits the dish's main ingredients (milk, butter, flour, egg, pepper):
- Capsicumfits about as well
- Potatofits about as well
- Asparagusthe original
- Chivefits about as well
Fit is the average pairing score against milk, butter, flour, egg, 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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