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Sauce

Sauce for Boiled Ducks and Rabbits

A simple onion-based sauce for boiled ducks and rabbits.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Sauce for Boiled Ducks and Rabbits

Ingredients

Directions

Prepare the onions

  1. Peel and boil the onions in a large pot of water for about 2 hours.

  2. Drain the onions in a colander and chop them on a board.

Make the sauce

  1. In a saucepan, combine the chopped onions with flour, milk or cream, and butter.

  2. Heat over medium until the butter is melted and everything is well combined.

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

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

  2. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Onion + buttertop 15% of all pairs
    Smell alikemoderate
    Cooked together42,912 recipes

    Shared aroma: decanal (soap, orange peel).

  5. Onion + flourtop 17% of all pairs
    Smell alikemoderate
    Cooked together32,460 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Flour and butter 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

Onions
Long boiling softens them and makes them sweet, giving the sauce its body and flavor.
Flour
Starch thickens the liquid as it heats, giving the sauce structure.
Milk or cream
Adds moisture and richness, creating a smooth, creamy texture.
Butter
Adds fat that carries flavor and gives the sauce a smooth, rich mouthfeel.

The step that matters

Heat over medium and combine well. Flour must be fully mixed into the butter and dairy before and as it heats; stirring keeps starch dispersed so the sauce thickens smoothly without lumps.

Swap the onion

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

  1. Potatofits better
  2. Arrowrootfits better
  3. Leekfits better
  4. Onionthe original

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