Why it works: Tarragon and mustard match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 901 recipes. Both carry methyleugenol, which smells clove, spice. The science ↓
Sardines with Egg Cream
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Remove the skin and bones from the sardines and break them into flakes.
Cut the gluten biscuit into nice square pieces.
Make the egg cream
In a saucepan, combine the butter, egg yolks, tarragon vinegar, and mustard, stirring until slightly thickened.
Warm and serve
Place the sardine flakes on the gluten biscuit slices and warm them in the oven at 350°F (175°C).
Pour the egg cream over the sardines and serve immediately.
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.
-
Tarragon + mustardtop 1% of all pairsSmell alikestrongCooked together901 recipes
Shared aroma: methyleugenol (clove, spice).
-
Biscuit + mustardtop 4% of all pairsSmell alikestrongCooked together121 recipes
Shared aroma: coumarin (sweet, hay).
-
Tarragon + vinegartop 7% of all pairsSmell alikemoderateCooked together2,547 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Vinegar + mustardtop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Biscuit + tarragontop 9% of all pairsSmell alikestrongCooked together18 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Sardines
- Provide the main protein and rich, savoury flavour of the dish.
- Egg yolks
- Thicken the cream and give it a smooth, rich texture when gently heated.
- Butter
- Adds fat for richness and a smooth, glossy texture to the cream.
- Gluten biscuit
- Forms the base that holds the sardine flakes and soaks up flavour.
- Tarragon vinegar
- Adds acidity that brightens the rich egg and butter cream.
The step that matters
Stirring the egg cream over heat. Egg yolks thicken as their proteins set, but if they get too hot they scramble and turn grainy. Stir gently and stop heating once the cream is slightly thickened.
Swap the tarragon
How well each one fits the dish's main ingredients (biscuit, egg, butter, vinegar, mustard):
- Capersfits better
- Tarragonthe original
- Nutmegfits less well
- Parsleyfits less well
Fit is the average pairing score against biscuit, egg, butter, vinegar, 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.
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