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Kidney Toast

A toast topped with chopped kidney pieces, seasoned with salt, Nepal pepper, and mustard, then baked until crisp.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Pepper and mustard are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 15,430 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Kidney Toast

Ingredients

Directions

Prepare

  1. Fry the bread in melted fat until golden yellow and soaked with fat.

  2. Remove the bread and place it on a flat dish.

  3. Cover the bread with chopped kidney pieces and pour remaining melted fat over it.

Bake and serve

  1. Divide into portions and place in the oven until crisp.

  2. Serve immediately with mustard, Nepal pepper, and hot plates.

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. Pepper + mustardtop 9% of all pairs
    Smell alikemoderate
    Cooked together15,430 recipes

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

  2. Bread + mustardtop 16% of all pairs
    Smell alikemoderate
    Cooked together1,484 recipes

    Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).

  3. Bread + peppertop 16% of all pairs
    Smell alikemoderate
    Cooked together20,964 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

Bread
Forms the base that soaks up fat and crisps in the oven.
Melted fat
Adds richness and moisture, and browns the bread as it fries.
Kidney pieces
Provide the main savoury filling and rich, meaty flavour on top of the bread.

Swap the mustard

How well each one fits the dish's main ingredients (bread, pepper):

  1. Capsicumfits better
  2. Tomatofits better
  3. Spinachfits better
  4. Mustardthe original

Fit is the average pairing score against bread, 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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