Name: Spanish Sandwich
Ingredients: one cup of minced; one cup of chopped olives; one table- williams public library association 369 spoon melted; one lemon; cayenne; pepper; salt

Why it works: Lemon and pepper match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and 27,047 recipes mention both. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Spanish Sandwich

Ingredients

Directions

Mix minced sardines, chopped olives, and bell peppers in equal proportions.
Add one tablespoon of melted or softened butter and the juice from one lemon.
Season with cayenne pepper and salt.
Place between large salted square crackers or bread that is a little old.

Recipe from a historical cookbook (Internet Archive).

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. See the original page.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.

Lemon + peppertop 3% of all pairs

Aroma overlapstrong

Mentioned together27,047 recipes

Shared aroma: trans-2-nonenal (cardboard, fatty).
Olive + lemontop 7% of all pairs

Aroma overlapmoderate

Mentioned together11,922 recipes

Shared aroma: 3-hexenal (apple, fruity).
Olive + peppertop 11% of all pairs

Aroma overlapmoderate

Mentioned together30,263 recipes

Shared aroma: 2,4-decadienal (seaweed).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Sardines (in the method): Provides the main savory, oily fish flavor and the body of the filling.
Olives: Adds briny, salty flavor that contrasts with the rich fish.
Bell peppers: Adds mild sweetness and fresh crispness to the filling.
Butter (in the method): Adds richness and moisture so the filling spreads smoothly.
Lemon juice: Adds acidity that brightens the rich, oily fish.

Flavor stand-ins for the lemon

How well each one fits the dish's main ingredients (olive, pepper):

Limeabout as good a flavor fit
Lemonthe original

Fit is the average pairing score against olive, pepper. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).

“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.