Name: Strengthening Jelly
Ingredients: 1 pint new milk; ¼ ounce isinglass shavings; 1 bitter almond or sugar (optional); Jamaica peppercorns (optional); toast of bread (for serving)

Why it works: Milk and bread are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 11,466 recipes. Both carry 2-undecenal, which smells sweet. The science ↓

Strengthening Jelly

Ingredients

1 pint new milk
¼ ounce isinglass shavings
1 bitter almond or sugar (optional)
Jamaica peppercorns (optional)
toast of bread (for serving)

Directions

Make the jelly

Boil 1 pint of new milk.
Add ¼ ounce of isinglass shavings and reduce to ½ pint.
Optionally, add a bitter almond or a little sugar for flavor.

Serve

Serve a large spoonful of the jelly in wine, water, milk, tea, or any agreeable drink.
Enjoy with a toast of 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.

Photo for illustrative purposes only · Contact us to use it

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 + breadtop 11% of all pairs

Smell alikemoderate

Cooked together11,466 recipes

Shared aroma: 2-undecenal (sweet).
Milk + almondtop 16% of all pairs

Smell alikemoderate

Cooked together5,800 recipes

Shared aroma: 2,4-decadienal (seaweed).
Almond + breadtop 17% of all pairs

Smell alikemoderate

Cooked together858 recipes

Shared aroma: acetylpyrazine (roast).

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

What each ingredient does

New milk: Forms the body of the jelly and carries the flavor of the dish.
Isinglass shavings: Gelatin-like protein that sets the milk into a jelly as it cools.

The step that matters

Reducing the milk to ½ pint with isinglass. Isinglass must dissolve fully in the hot milk and the liquid must be reduced to the stated volume; too little reduction leaves the jelly too soft to set, while overboiling can scorch the milk and change its flavor.