Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Kidney Pudding
Ingredients
Directions
Prepare
Roll the suet crust to ½ inch thick and line a well-greased basin with it.
Remove the hard core from the kidney, wash it in vinegar and water, and cut it into nearly 1-inch square pieces.
Fill and cover
Add the optional fat bacon or salt pork for extra flavor. Season generously with salt and pepper.
Pour in enough plain stock to cover the kidney pieces.
Cover with the remaining suet crust and seal the edges.
Cook
Steam or boil for about 1 hour 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.
-
Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Onion + porktop 10% of all pairsSmell alikemoderateCooked together18,214 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + porktop 16% of all pairsSmell alikemoderateCooked together22,121 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + lemontop 19% of all pairsSmell alikemoderateCooked together15,646 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
- Cow's kidney
- Forms the main meat filling, becoming tender through long moist cooking.
- Suet crust
- Forms the pastry lining and lid that encase the filling while it steams.
- Plain stock
- Surrounds the kidney pieces, adding moisture and savoury flavour during cooking.
- Fat bacon or salt pork
- Adds fat and savoury flavour to the filling as it cooks.
The step that matters
Remove the hard core and wash the kidney well. The hard core and strong-tasting parts of kidney can make the pudding bitter and tough. Removing them and soaking the pieces in vinegar and water helps mellow the flavour and keeps the texture pleasant.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (pepper, pork, lemon):
- Capsicumfits better
- Spinachfits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against pepper, pork, lemon. 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Lemon Sauce236 recipes
Pork Cake107 recipes
Roast Pork82 recipes
Tomato Soup526 recipes