Name: White or Milk Soup
Ingredients: 2 pints of milk; 3 tablespoons of cooked rice; 2 tablespoons of flour; 1 teaspoon of finely chopped onion; ¼ teaspoon of finely chopped lemon rind; a pinch of ground mace; salt and pepper to taste

Why it works: Lemon and pepper match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

White or Milk Soup

Ingredients

Directions

Mix the flour smoothly with a little cold milk or water.
Add the flour mixture to the boiling milk and stir until it thickens slightly.
Stir in the onion, lemon rind, and season with salt and pepper.
Simmer gently for 15 minutes.
Add the prepared rice and serve.

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.

Lemon + peppertop 3% of all pairs

Smell alikestrong

Cooked together27,047 recipes

Shared aroma: trans-2-nonenal (cardboard, fatty).
Milk + ricetop 7% of all pairs

Smell alikemoderate

Cooked together7,374 recipes

Shared aroma: 2-nonenal (fatty, green).
Rice + oniontop 9% of all pairs

Smell alikemoderate

Cooked together10,433 recipes

Shared aroma: 2,4-decadienal (seaweed).
Onion + peppertop 11% of all pairs

Smell alikemoderate

Cooked together68,474 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Rice + peppertop 12% of all pairs

Smell alikemoderate

Cooked together8,379 recipes

Shared aroma: trans-2-nonenal (cardboard, fatty).

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

What each ingredient does

Milk: Forms the liquid base of the soup and gives it its creamy body.
Flour: Thickens the milk as it heats, giving the soup body.
Cooked rice: Adds bulk and a soft, starchy texture to the soup.

The step that matters

Adding the flour mixture to the boiling milk. Flour mixed into hot liquid can clump if not first smoothed with cold liquid. Starch granules swell evenly only when they are dispersed, so mixing the flour smoothly first keeps the soup lump-free and evenly thickened.

Swap the mace

How well each one fits the dish's main ingredients (milk, rice, flour, onion, lemon, pepper):

Turmericfits better
Cardamomfits better
Parsleyfits better
Macethe original

Fit is the average pairing score against milk, rice, flour, onion, lemon, pepper. Candidates are from the same food group and used in at least 100 recipes.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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White or Milk Soup