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 ↓
Beef Kidney
Ingredients
Directions
Prepare and fry
Trim and cut the kidney into slices.
Season the slices with salt and pepper, and dredge them well with flour.
Fry the slices on both sides for 6 to 9 minutes until done.
Make the gravy
When done, lift the slices out, empty the pan, and make gravy: add a small slice of butter, a dessert spoonful of flour, pepper, salt, and a cup of boiling water; shake and simmer for a minute.
Add a little mushroom catsup, lemon juice, eschalot vinegar, or any store sauce to flavor.
Optionally, add minced herbs and a small quantity of onion shredded finely if desired.
Nutrition, whole recipe (rough)
Counts 5 of 6 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 5 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Butter | 1 tbsp (14g) | 102 |
| Lemon | juice of 1 lemon (48ml) | 12 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Vinegar | 1 tbsp (15ml) distilled | 3 |
| Salt | 1 tsp (6g) | 0 |
| Water | not in our table | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
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. See the original page.
Photo for illustrative purposes only · Contact us to use it
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).
-
Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Lemon + vinegartop 20% of all pairsSmell alikemoderateCooked together7,334 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Kidney (in the method)
- Forms the main meat that is cooked through and served in slices.
- Flour (in the method)
- Coats the slices so they brown in the pan and thickens the gravy.
- Butter
- Adds richness and fat to the pan gravy.
- Lemon juice
- Adds acidity that brightens the rich flavor of the gravy.
- Vinegar
- Adds sharp acidity to cut the richness of the gravy.
The step that matters
Frying the slices for 6 to 9 minutes. Kidney turns tough and rubbery if overcooked, so the slices should be cooked just until done. Dredging in flour helps them brown, which adds flavor and a crisp surface.
Swap the lemon
How well each one fits the dish's main ingredients (butter, pepper, vinegar):
- Lemonthe original
- Mangofits about as well
- Plumfits about as well
- Cherryfits less well
Fit is the average pairing score against butter, pepper, vinegar. 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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