Why it works: Flour and butter are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Mutton Pie
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Preheat the oven to 350°F (175°C).
Layer the cold mutton slices in a deep dish.
Place an empty cup upside down in the center of the dish to catch the gravy.
Season the meat with salt, pepper, and sprinkle with flour.
Add the gravy and bake
Add the cold gravy and currant jelly.
If there is not enough gravy, add a little water and butter.
Cover the dish with a prepared pie crust, making three slits in the center.
Bake for 45 minutes.
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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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mutton + peppertop 16% of all pairsSmell alikelowCooked together5,442 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Mutton + buttertop 16% of all pairsSmell alikemoderateCooked together3,781 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Currant + buttertop 17% of all pairsSmell alikemoderateCooked together7,856 recipes
Shared aroma: isoamyl acetate (banana, pear).
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Pepper + flourtop 19% of all pairsSmell alikemoderateCooked together50,459 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Slices of cold mutton
- Forms the savoury filling that makes up the body of the pie.
- Flour
- Thickens the gravy and juices so they cling to the meat rather than running off.
- Cold gravy
- Supplies moisture and meaty flavour that keeps the filling from drying out while baking.
- Currant jelly
- Adds sweetness and a touch of acidity that balances the rich meat and gravy.
- Pie crust
- Encloses the filling, trapping steam and moisture as it bakes.
The step that matters
Covering the dish with the pie crust and slitting it. The three slits let steam escape during baking. Without them, trapped steam can build pressure, soften the crust underneath, and make the filling watery.
Swap the currant
How well each one fits the dish's main ingredients (mutton, pepper, flour, butter):
- Lemonfits better
- Limefits better
- Raisinfits better
- Currantthe original
Fit is the average pairing score against mutton, pepper, flour, butter. 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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