Why it works: Pepper and potato are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 8,305 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Cottage Pie
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Preheat the oven to 400°F (200°C).
Assemble
Spread the minced cold meat in a pie dish, about 1½ inches deep.
Cover the meat with gravy, and season with salt and pepper.
Top with a thick layer of mashed potatoes and score the surface in a diamond pattern with a knife.
Bake
Bake until the top is crisp and brown.
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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Pepper + potatotop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Meat + potatotop 14% of all pairsSmell alikemoderateCooked together786 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
-
Meat + peppertop 19% of all pairsSmell alikelowCooked together8,777 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Minced cold meat
- Forms the savory base of the pie filling.
- Gravy
- Adds moisture so the meat stays juicy while baking.
- Mashed potatoes
- Forms a topping that crisps and browns in the oven.
The step that matters
Topping the meat with mashed potatoes. The layer should be thick enough to protect the filling from drying out while the top crisps. Scoring the surface creates ridges and edges that brown more evenly.
Swap the potato
How well each one fits the dish's main ingredients (meat, pepper):
- Capsicumfits better
- Mustardfits about as well
- Carrotfits about as well
- Potatothe original
Fit is the average pairing score against meat, 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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