Why it works: Butter and mushroom are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 12,525 recipes. Both carry trans-2-decenal, which smells waxy, orange. The science ↓
Sausages and Kidneys, Semi-fried
Ingredients
Directions
Prepare the pan
Melt the butter in a frying pan over medium heat.
Add the bacon and chopped onions, and fry for 5 minutes, stirring occasionally.
Cook and serve
Add the sausages and kidney slices to the pan, seasoning with salt and pepper.
Fry gently for 5 minutes, turning occasionally to avoid overcooking.
Sprinkle with flavoring, add water, and simmer for 2 minutes.
Serve with kidneys in the center and sausages arranged around them.
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.
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Butter + mushroomtop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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Onion + mushroomtop 10% of all pairsSmell alikemoderateCooked together10,626 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + mushroomtop 11% of all pairsSmell alikemoderateCooked together13,580 recipes
Shared aroma: 2-nonenal (fatty, green).
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Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Ox kidney
- Cooks into tender slices when fried gently, and its dense texture is the main element of the dish.
- Sausages
- Browning in the pan adds savory flavor and color, and the fat they release helps cook the other ingredients.
- Bacon
- Renders fat into the pan and adds smoky, savory flavor to the onions and meat.
- Onions
- Soften and turn sweet as they fry, adding flavor to the pan.
- Butter
- Adds fat for frying and a rich flavor to the onions and bacon.
The step that matters
Fry gently for 5 minutes, turning occasionally to avoid overcooking. Kidney becomes tough and rubbery when overcooked, because high heat tightens its proteins quickly. Gentle heat and frequent turning keep the slices tender and cooked through.
Swap the onion
How well each one fits the dish's main ingredients (butter, pepper, mushroom):
- Capsicumfits better
- Shallotfits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against butter, pepper, mushroom. 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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