Why it works: Butter and bread are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓
Ham Sandwiches
Ingredients
Directions
Prepare the filling
Chop the cold boiled ham, fat, tongue, and chicken finely.
In a bowl, mix the butter, salad oil, mustard, egg yolk, and salt until well combined.
Spread the mixture smoothly over the chopped meat.
Serve
Serve on thin slices of bread.
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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Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Ham + breadtop 7% of all pairsSmell alikemoderateCooked together2,536 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
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Chicken + mustardtop 13% of all pairsSmell alikemoderateCooked together2,192 recipes
Shared aroma: gamma-nonanolactone (coconut, creamy).
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Egg + breadtop 13% of all pairsSmell alikemoderateCooked together22,662 recipes
Shared aroma: (e)-2-octenal (fatty, green).
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Ham + chickentop 14% of all pairsSmell alikemoderateCooked together1,497 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Adds richness and a smooth, spreadable body to the filling.
- Egg yolk
- Helps emulsify the fats so the mixture holds together smoothly.
- Mustard
- Adds sharpness that cuts through the richness of the fats and meats.
- Salad oil
- Adds fat and moisture, keeping the filling soft and spreadable.
The step that matters
Mixing the butter, oil, and egg yolk. Butter and oil are fats that must be blended with the yolk so they form a stable, smooth emulsion. If the mixture separates or is poorly combined, the spread will be greasy and uneven rather than smooth.
Swap the mustard
How well each one fits the dish's main ingredients (ham, chicken, butter, egg, bread):
- Asparagusfits better
- Leekfits better
- Potatofits about as well
- Mustardthe original
Fit is the average pairing score against ham, chicken, butter, egg, bread. 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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