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Salsify or Vegetable Oyster Soup

A soup made from salsify, milk, cream or butter, flour, and sea salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Milk and flour are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 78,219 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Salsify or Vegetable Oyster Soup

Ingredients

Directions

Prepare

  1. Wash and scrape the salsify, then place it in cold water to prevent discoloration.

Make the soup

  1. Cut the salsify into slices and cook in an equal quantity of water slowly until tender.

  2. Add 2-3 cups of milk and a few spoonfuls of cream or a small piece of butter, and heat to boiling.

  3. Thicken slightly with 1-2 tablespoons of flour rubbed smooth in a little cold milk, then let boil for a few minutes.

  4. Season with coarse sea salt 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.

  1. Milk + flourtop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Milk + creamtop 18% of all pairs
    Smell alikemoderate
    Cooked together29,399 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

  3. Cream + flourtop 20% of all pairs
    Smell alikemoderate
    Cooked together30,481 recipes

    Shared aroma: acetaldehyde (pungent, ethereal).

Milk and flour barely smell alike, yet cooks put them together in 78,219 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

Salsify
Provides the main vegetable body and mild, oyster-like flavor of the soup.
Milk
Forms the liquid base of the soup and gives it a creamy, smooth body.
Cream or butter
Adds richness and fat, giving the soup a softer mouthfeel and rounder flavor.
Flour
Thickens the soup as its starch swells when heated in the liquid.

The step that matters

Thicken with flour rubbed smooth in cold milk. Flour added directly to hot liquid forms lumps because its starch clumps before it can disperse. Mixing it smooth in cold milk first lets the starch spread evenly, so it thickens the soup without lumps once heated and boiled.

“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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