Name: Grape Jelly
Ingredients: 2 pounds grapes; juice of 2 lemons; ½ pint syrup; 1 ounce prepared isinglass

Why it works: Grape and lemon are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 2,412 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Grape Jelly

Ingredients

2 pounds grapes
juice of 2 lemons
½ pint syrup
1 ounce prepared isinglass

Directions

Extract the juice from the grapes and strain it through a flannel bag.
Add the juice of the lemons and the syrup to the grape juice.
Mix in the prepared isinglass.
Finish as you would for Venus’s clear jelly.

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.

Grape + lemontop 14% of all pairs

Smell alikemoderate

Cooked together2,412 recipes

Shared aroma: 3-hexenal (apple, fruity).
Lemon + syruptop 20% of all pairs

Smell alikelow

Cooked together2,235 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Grape + syruptop 25% of all pairs

Smell alikelow

Cooked together393 recipes

Shared aroma: ethanol (alcoholic, ethereal).