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Soup

Carrot Soup

A soup made with carrots, onion, stock, milk, butter, flour, salt, and pepper.

From an old cookbook · modernised transcription
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Carrot Soup

Why it works: Carrot and pepper match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 14,555 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Carrot Soup

Ingredients

Directions

Make the stock

  1. Cook the grated carrot and chopped onion in water until tender.

  2. Press the mixture through a strainer to obtain 4 cups of stock.

Make the soup

  1. In a separate pot, melt the butter and add the flour, stirring to combine.

  2. Gradually add the stock and milk, stirring until smooth.

  3. Season with salt and pepper to taste.

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.

  1. Carrot + peppertop 6% of all pairs
    Smell alikestrong
    Cooked together14,555 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  2. Carrot + oniontop 6% of all pairs
    Smell alikemoderate
    Cooked together21,601 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  3. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  4. Onion + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  5. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Butter and flour barely smell alike, yet cooks put them together in 124,287 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

Carrot
Adds sweetness, body and color to the soup as it cooks down.
Onion
Adds savory aroma and depth of flavor as it softens in the liquid.
Stock
Forms the main liquid base that carries the soup's flavor.
Butter
Adds fat and flavor, and forms the base for the flour mixture.
Flour
Thickens the soup as its starch swells when mixed with melted butter and liquid.
Milk
Adds creaminess and richness, softening the soup's texture.

The step that matters

Gradually add the stock and milk, stirring until smooth. Flour starch clumps when liquid is poured in too fast. Adding the liquid slowly while stirring lets each grain separate and hydrate, giving a smooth, evenly thickened soup.

Swap the onion

How well each one fits the dish's main ingredients (milk, carrot, butter, flour, pepper):

  1. Parsnipfits better
  2. Potatofits better
  3. Capsicumfits better
  4. Onionthe original

Fit is the average pairing score against milk, carrot, butter, flour, 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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