Name: Caviare Toast
Ingredients: best Russian caviare (or American/German caviare); lemon juice; salt; pepper; vinegar; olive oil; slices of toast; thinly sliced brown bread (optional); butter (optional)

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

Caviare Toast

Ingredients

Directions

If using mock-caviare, bone 6 anchovies and pound them with 1 clove of garlic to a paste.
Season the caviare with lemon juice, salt, pepper, vinegar, and olive oil, mixing like a salad dressing.
Spread the seasoned caviare lightly on delicate slices of toast.
Alternatively, serve with thinly sliced, lightly buttered brown bread.

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.

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.

Lemon + peppertop 3% of all pairs

Smell alikestrong

Cooked together27,047 recipes

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

Smell alikemoderate

Cooked together27,232 recipes

Shared aroma: delta-decalactone (sweet, creamy).
Lemon + olivetop 7% of all pairs

Smell alikemoderate

Cooked together11,922 recipes

Shared aroma: 3-hexenal (apple, fruity).
Olive + breadtop 9% of all pairs

Smell alikemoderate

Cooked together1,091 recipes

Shared aroma: 2-undecenal (sweet).
Vinegar + olivetop 10% of all pairs

Smell alikemoderate

Cooked together12,297 recipes

Shared aroma: isoamyl acetate (banana, fruity).

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

Swap the lemon

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

Plumfits about as well
Lemonthe original
Cherryfits about as well
Figfits about as well

Fit is the average pairing score against pepper, vinegar, olive, bread, butter. Candidates are from the same food group and used in at least 100 recipes.