Why it works: Mustard and endive match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 121 recipes. Both carry trans-2-hexenal, which smells green, leafy. The science ↓
Sandwiches D LA Chasseur
Ingredients
Directions
Prepare
Toast the slices of white bread lightly on both sides.
Split the toasted bread open and butter them.
Assemble
Layer thin slices of roast game between the slices of bread.
Mix a little French mustard into the tartare sauce and spread it over the meat.
Press the sandwiches together.
Pack
Pack the sandwiches in waterproof butter paper to keep them moist.
Wrap the washed and drained endive and cress in butter paper and pack it with the sandwiches.
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.
-
Mustard + endivetop 1% of all pairsSmell alikestrongCooked together121 recipes
Shared aroma: trans-2-hexenal (green, leafy).
-
Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Sauce + mustardtop 13% of all pairsSmell alikemoderateCooked together2,120 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Bread + mustardtop 16% of all pairsSmell alikemoderateCooked together1,484 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
Butter and sauce barely smell alike, yet cooks put them together in 15,338 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
- White bread
- Provides the structure that holds the layers together once toasted and buttered.
- Butter
- Adds fat and moisture, and keeps the bread from soaking up the sauce.
- Roast game
- Forms the savoury filling that gives the sandwich its main flavour and body.
- Tartare sauce
- Adds moisture and tangy, acidic richness that spreads over the meat.
- French mustard
- Adds sharp, pungent flavour that cuts through the richness of the meat and sauce.
The step that matters
Toasting the bread lightly on both sides. Toasting dries the bread surface so it resists sogging from the butter, sauce and meat. Too much toasting makes it brittle and hard to press, while too little leaves it soft and wet.
Swap the endive
How well each one fits the dish's main ingredients (bread, butter, sauce, mustard):
- Shallotfits better
- Horseradishfits better
- Lettucefits better
- Endivethe original
Fit is the average pairing score against bread, butter, sauce, mustard. 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
White Bread80 recipes
Bread Omelette60 recipes
Oatmeal Bread51 recipes