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 ↓
Dbessikg for Sandwiches
Ingredients
Directions
Prepare
Mix the sweet oil, mixed mustard, butter, red pepper, salt, and egg yolk in a bowl until smooth, then keep the mixture cool.
Finely chop the tongue, ham, and cold chicken (if using).
Assemble
Spread the dressing on a slice of bread, then add the meat mixture.
Top with another slice of bread, press together, and trim the edges.
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.
-
Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Bread + hamtop 7% of all pairsSmell alikemoderateCooked together2,536 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
-
Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Mustard + chickentop 13% of all pairsSmell alikemoderateCooked together2,192 recipes
Shared aroma: gamma-nonanolactone (coconut, creamy).
-
Egg + breadtop 13% of all pairsSmell alikemoderateCooked together22,662 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
- Egg yolk
- Emulsifies the oil and butter into a smooth, stable dressing that clings to the bread.
- Butter
- Adds richness and a creamy texture to the dressing.
- Mixed mustard
- Adds sharpness that cuts through the richness of the butter and meats.
- Sweet oil
- Gives the dressing a smooth, fluid body and moisture.
The step that matters
Keep the mixture cool. Butter softens and can separate from the egg yolk and oil when warm, so the dressing can turn greasy and loose. Keeping it cool helps it stay thick, smooth, and stable until assembly.
Swap the mustard
How well each one fits the dish's main ingredients (butter, pepper, egg, bread, ham, chicken):
- Capsicumfits better
- Asparagusfits better
- Potatofits about as well
- Mustardthe original
Fit is the average pairing score against butter, pepper, egg, bread, ham, chicken. 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Brown Bread461 recipes
Chicken Broth257 recipes
Chicken Soup156 recipes
Creamed Chicken89 recipes