Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Eggs a LA Golden Rod
Ingredients
Directions
Make the sauce
Make a thin white sauce by melting butter, adding flour, and gradually whisking in milk and seasonings.
Separate the yolks from the whites of the eggs.
Chop the whites finely and add one-third to the white sauce.
Assemble and serve
Cut the toast into circular slices and arrange them on a platter.
Pour the white sauce over each slice of toast.
Pile the chopped egg whites on the toast, leaving a small space in the center.
Force the yolks through a fine sieve and place them in the center of each slice of toast.
Pour the remaining white sauce around the edge of the platter and garnish with parsley and toast points.
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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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 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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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + parsleytop 12% of all pairsSmell alikemoderateCooked together16,675 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter 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
- Flour
- Thickens the melted butter and milk into a smooth white sauce.
- Butter
- Provides fat that carries flavor and forms the base of the sauce with the flour.
- Milk
- Forms the liquid body of the sauce, which sets its thin, pourable texture.
- Eggs
- Chopped whites add texture and body to the sauce, while sieved yolks add richness and color.
The step that matters
Whisk the milk into the butter and flour gradually. Adding the milk slowly while whisking lets the flour starch disperse evenly and swell smoothly. Pouring it in all at once causes lumps that are hard to remove, leaving the sauce grainy.
Swap the parsley
How well each one fits the dish's main ingredients (egg, flour, butter, milk, pepper):
- Nutmegfits about as well
- Cinnamonfits about as well
- Parsleythe original
- Cardamomfits about as well
Fit is the average pairing score against egg, flour, butter, milk, 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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