Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Liver-and-Potato Pie
Ingredients
Directions
Prepare
Peel and wash the potatoes.
Place the potatoes in a saucepan with cold water to cover, then bring the water to a boil.
Drain the potatoes and cut them into slices.
Wash the liver in cold water and cut it into thin slices.
Assemble and bake
Cover the bottom of a shallow baking tin with potato slices.
Layer the sliced liver on top of the potatoes.
Sprinkle the layer with chopped onion, salt, and pepper.
Add 2-3 thin slices of bacon on top.
Repeat layers if desired.
Bake until cooked through.
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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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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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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Liver + oniontop 15% of all pairsSmell alikelowCooked together1,420 recipes
Shared aroma: furaneol (caramel, strawberry).
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Liver + peppertop 21% of all pairsSmell alikemoderateCooked together2,375 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
- Potatoes
- Form the bulk of the pie and give it a soft, starchy body.
- Liver
- Adds rich, savoury flavour and a dense, meaty texture between the potato layers.
- Bacon
- Adds salty, smoky fat that flavours the layers as it cooks.
- Onion
- Adds sharp, sweet aroma that mellows during baking.
The step that matters
Bake until cooked through. Liver cooks quickly and turns grainy and tough if overcooked, while the dense potato layers need enough heat to become fully tender. Checking that both are done through is essential.
Swap the potato
How well each one fits the dish's main ingredients (liver, onion, pepper):
- Carrotfits about as well
- Capsicumfits about as well
- Mustardfits about as well
- Potatothe original
Fit is the average pairing score against liver, onion, 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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