Why it works: Parsley and shallot match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 3,737 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Ham Croutes
Ingredients
Directions
Prepare the croûtes
Use a round pastry cutter to stamp out pieces from the stale bread slices.
Fry the bread pieces in hot fat until golden brown.
Make the ham mixture
Melt the butter in a small saucepan.
Add the chopped shallot and ham and stir over heat until hot.
Add the egg yolks and cream to the ham mixture.
Season with pepper and stir until thickened.
Assemble and serve
Place about a tablespoon of the mixture on each croûte.
Sprinkle with parsley.
Serve immediately.
Garnish with fried parsley.
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 + shallottop 1% of all pairsSmell alikestrongCooked together3,737 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Bread + hamtop 7% of all pairsSmell alikemoderateCooked together2,536 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Stale bread
- Its dry crumb crisps well when fried, giving a sturdy base for the topping.
- Butter
- Melted butter adds richness and a rounded, savoury flavour to the ham mixture.
- Eggs
- Egg yolks thicken the ham mixture as they gently set, giving it a creamy body.
- Ham
- Cooked ham supplies the savoury, meaty flavour that carries the dish.
- Cream
- Cream adds moisture and richness, keeping the mixture smooth and spreadable.
- Shallot
- Shallot gives a mild onion aroma that softens as it cooks into the mixture.
The step that matters
Thickening the ham mixture. Stir the egg yolks and cream into the ham over gentle heat only until thickened. Egg proteins set at moderate temperatures, so high heat or overcooking can curdle the mixture into grainy bits instead of a smooth spread.
Swap the shallot
How well each one fits the dish's main ingredients (bread, butter, egg, pepper, ham, parsley, cream):
- Leekfits about as well
- Shallotthe original
- Asparagusfits about as well
- Potatofits about as well
Fit is the average pairing score against bread, butter, egg, pepper, ham, parsley, cream. 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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