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Peptonized Milk Gruel

A thick milk gruel made with flour, milk, peptonized liquor, and bicarbonate, kept warm and then boiled and strained.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Flour and milk 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 ↓

Peptonized Milk Gruel

Ingredients

Directions

Prepare

  1. Prepare a thick gruel from the farinaceous material.

  2. While still boiling hot, mix the gruel with an equal quantity of cold milk.

Peptonize and finish

  1. Add 2-3 teaspoons of liquor pancreaticus and ½ teaspoon of bicarbonate of soda to the mixture.

  2. Keep the mixture warm in a covered jug for 2 hours.

  3. Boil for a few minutes and then strain.

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

    Shared aroma: isobutyraldehyde (malty, green).

Flour and milk 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

Farinaceous material
Forms the thick gruel base that gives the mixture body.
Cold milk
Adds moisture and dairy proteins that the enzymes act on.
Liquor pancreaticus
Pancreatic enzymes that partly break down milk proteins and starches.
Bicarbonate of soda
Raises the mixture's pH to help the enzymes work.

The step that matters

Keep the mixture warm for the full 2 hours. Pancreatic enzymes work fastest near body temperature. Too cool and the breakdown stalls; too hot and the enzymes are destroyed, so the gruel stays unchanged. Holding it warm and covered keeps the enzymes active for the whole period.

“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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