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A Blanc

A Blanc is a dish of bacon, beef suet, butter, lemon, hay leaves, cloves, carrots, onions, and water simmered until the fat melts.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 10 ingredients
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Why it works: Beef and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and 17,091 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

The recipe

Ingredients

Contains: milk (auto-detected from the ingredients and method; we can miss things, so check labels)

Directions

Prepare the blanc

  1. In a stewpan, combine the grated bacon, chopped beef suet, and butter.

  2. Add the lemon juice, hay leaves, cloves, diced carrots, diced onions, and water.

  3. Simmer gently, stirring often, until the fat is melted and the water evaporates.

Simmer and strain

  1. Pour in additional liquid as needed for the dish to be cooked in the blanc.

  2. Boil softly until all ingredients release their flavors, skim off any impurities.

  3. Add salt if needed and strain for use.

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 aroma chemistry they share, and how many recipes mention both.

  1. Beef + oniontop 3% of all pairs
    Aroma overlapmoderate
    Mentioned together17,091 recipes

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

  2. Clove + carrottop 3% of all pairs
    Aroma overlapstrong
    Mentioned together4,916 recipes

    Shared aroma: cuminaldehyde (Spicy, cumin).

  3. Carrot + oniontop 4% of all pairs
    Aroma overlapstrong
    Mentioned together21,599 recipes

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

  4. Beef + carrottop 5% of all pairs
    Aroma overlapstrong
    Mentioned together6,604 recipes

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

  5. Lemon + carrottop 5% of all pairs
    Aroma overlapstrong
    Mentioned together3,350 recipes

    Shared aroma: 2-nonenal (fatty, green).

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

What each ingredient does

Fat bacon
Melts to add richness and savoury flavour to the liquid.
Beef suet
Melts to add body and fat, giving the base a rich, savoury character.
Butter
Adds fat and richness that carries flavour through the blanc.
Lemon juice
Adds acidity that brightens the flavour of the blanc.
Onions
Soften and release aromatic, savoury flavour into the liquid.
Carrots
Soften and release mild sweetness and aroma as they cook.

The step that matters

Simmer gently and skim. Boiling hard can break the fat into a cloudy, greasy liquid. Gentle simmering lets flavour release slowly, and skimming removes impurities that would otherwise cloud the liquid or spoil its taste.

Flavor stand-ins for the lemon

How well each one fits the dish's main ingredients (beef, butter, clove, carrot, onion):

  1. Orangebetter flavor fit
  2. Grapebetter flavor fit
  3. Applebetter flavor fit
  4. Lemonthe original

Fit is the average pairing score against beef, butter, clove, carrot, onion. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).

“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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