Name: Chocolate Eclairs
Ingredients: butter; chocolate icing; cream (from Boston Cream Cakes recipe)

Why it works: Butter and cream are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓

Chocolate Eclairs

Oven, in the book's wordsA quick oven

Ingredients

butter
chocolate icing
cream (from Boston Cream Cakes recipe)

Directions

The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure. The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.

Prepare the mixture as for Boston Cream Cakes.
Spread the mixture on buttered pans in oblong pieces, about 4 inches long and 1.5 inches wide, leaving 2 inches between each.
Bake in a quick oven at 400°F (200°C) for about 25 minutes.
Once baked, ice with chocolate icing.
When the icing is cold, split the eclairs on one side and fill with cream.

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.

Butter + creamtop 8% of all pairs

Smell alikemoderate

Cooked together41,516 recipes

Shared aroma: delta-dodecalactone (sweet, creamy).
Chocolate + creamtop 11% of all pairs

Smell alikemoderate

Cooked together5,466 recipes

Shared aroma: delta-decalactone (sweet, creamy).
Butter + chocolatetop 16% of all pairs

Smell alikemoderate

Cooked together10,543 recipes

Shared aroma: delta-decalactone (sweet, creamy).