Name: Jelly Cake
Ingredients: 1 cup milk; ½ cup chocolate; ½ cup sugar; 1 egg yolk; 2 teaspoons corn starch; butter (for filling)

Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Jelly Cake

Ingredients

Directions

In a saucepan, combine milk, chocolate, sugar, egg yolk, and corn starch.
Mix well and boil until thick.
Let the mixture cool, then spread it between the cake layers with a little butter.
For a dark brown layer, mix chocolate into half of the cake batter.
To make brown frosting, add chocolate to the sugar after mixing with eggs.

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.

Milk + buttertop 7% of all pairs

Smell alikemoderate

Cooked together81,283 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Milk + corntop 10% of all pairs

Smell alikemoderate

Cooked together6,955 recipes

Shared aroma: hexanal (green, grassy).
Chocolate + sugartop 13% of all pairs

Smell alikemoderate

Cooked together15,404 recipes

Shared aroma: guaiacol (smoky, sweet).
Milk + chocolatetop 13% of all pairs

Smell alikemoderate

Cooked together9,128 recipes

Shared aroma: gamma-nonanolactone (coconut, sweet).
Corn + buttertop 14% of all pairs

Smell alikemoderate

Cooked together7,345 recipes

Shared aroma: 2,3-pentanedione (butter, sweet).