Why it works: Ham and mustard work together. They rank in the top 14% of all ingredient pairs, and cooks put them together in 747 recipes. Both carry 2-acetyl-1-pyrroline, which smells popcorn, roasted. The science ↓
Ham on Toast
Ingredients
Directions
Prepare the ham
Chop the ham very fine.
Make the filling
Beat the egg yolks until light and mix them with the ham.
Add mustard, cayenne, and stir over low heat until the eggs are cooked.
Serve
Serve immediately on squares of buttered toast.
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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Ham + mustardtop 14% of all pairsSmell alikelowCooked together747 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
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Ham + eggtop 17% of all pairsSmell alikemoderateCooked together4,526 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Mustard + eggtop 28% of all pairsSmell alikemoderateCooked together9,210 recipes
Shared aroma: (e)-2-octenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Egg yolks cook and thicken over low heat, binding the ham into a soft, spreadable mixture.
- Ham
- Provides the savory meaty base and the main flavor of the filling.
- Mustard
- Adds sharpness that balances the richness of the egg yolks.
The step that matters
Stirring over low heat until the eggs are cooked. Egg yolks thicken as their proteins set, but high heat can overcook them and make them grainy or scrambled. Gentle, constant stirring over low heat gives a smooth, creamy texture.
Swap the mustard
How well each one fits the dish's main ingredients (ham, egg):
- Asparagusfits better
- Mustardthe original
- Leekfits about as well
- Welsh onionfits less well
Fit is the average pairing score against ham, egg. 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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