Name: Duchess Cream
Ingredients: 1 cup tapioca; boiling water; juice of 2 lemons; 1 can grated pineapple; 2 cups sugar; 2 egg whites; whipped cream

Why it works: Sugar and cream are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 43,450 recipes. Both carry 2,3-butanedione, which smells butter, sweet. The science ↓

Duchess Cream

Ingredients

Directions

Prepare the tapioca

Soak the tapioca overnight.
Drain the tapioca and cover it with boiling water.
Simmer until the tapioca is clear.

Make the cream

Add the lemon juice, grated pineapple, sugar, and beaten egg whites.
Chill thoroughly and serve with whipped 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.

Sugar + creamtop 9% of all pairs

Smell alikemoderate

Cooked together43,450 recipes

Shared aroma: 2,3-butanedione (butter, sweet).
Lemon + pineappletop 12% of all pairs

Smell alikemoderate

Cooked together1,964 recipes

Shared aroma: 2-nonenal (fatty, green).
Lemon + sugartop 18% of all pairs

Smell alikelow

Cooked together53,532 recipes

Shared aroma: 2-nonenal (fatty, green).
Lemon + eggtop 19% of all pairs

Smell alikelow

Cooked together44,316 recipes

Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
Pineapple + sugartop 19% of all pairs

Smell alikelow

Cooked together4,841 recipes

Shared aroma: 2-nonenal (fatty, green).

Lemon and sugar barely smell alike, yet cooks put them together in 53,532 recipes: they work on texture and structure more than aroma.

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

What each ingredient does

Tapioca: Thickens the mixture as its starch swells and turns clear when cooked.
Egg whites: Add lightness and body to the cream once beaten into the mixture.
Sugar: Sweetens the cream and balances the acidity of the lemon and pineapple.
Lemon juice: Adds acidity that brightens the flavour and cuts the sweetness.