Why it works: Onion and potato 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 ↓
Kidney Stew
Ingredients
Directions
Prepare the kidneys
Soak the kidneys in milk for an hour, then discard the milk.
Dry the kidneys and remove any membrane, tubes, tough tissue, and as much fat as possible.
Slice the kidneys and cut them into small cubes, smaller than dice.
Make the stew
In a stew pot, melt 4 tbsp. of lard and cook onion until transparent.
Add the kidney dice to the lard with onions and sprinkle paprika and salt over everything.
Cook for a few minutes to lightly brown the kidneys, then add bay leaves and mace.
Add water to cover and slowly cook for 30 to 45 minutes.
After 30 minutes, check if the kidney dice is tender and cooked. If it is done, remove from heat.
If it is too soft, continue cooking for another 15 minutes; you do not want the kidney to get tough.
Thicken and finish
Stir two tablespoons of flour into a cup with 2 tbsp. of soft butter.
Make a roux by blending the flour and butter until well mixed.
Stir the roux into the kidney stew and let it cook until thickened.
Remove the bay leaves.
Nutrition, whole recipe (rough)
Counts 10 of 13 ingredients. The other 3 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 10 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Flour | 1 cup (125g) all-purpose | 455 |
| Pork | 100g cooked | 242 |
| Potato | 1 medium (173g) baked | 161 |
| Lard | 1 tbsp (12.8g) | 115 |
| Butter | 1 tbsp (14g) | 102 |
| Yogurt | 170g plain Greek | 100 |
| Onion | 1 medium (110g) | 44 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Bay Leaf | 1 leaf (0.6g) | 2 |
| Salt | 1 tsp (6g) | 0 |
| Mace | not in our table | 0 |
| Water | not in our table | 0 |
| Dumpling | 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.
Steps grouped into stages for easier reading; the method is the source's own.
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.
-
Onion + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pork + potatotop 5% of all pairsSmell alikemoderateCooked together2,668 recipes
Shared aroma: sotolon (curry, maple).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Pepper + potatotop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pork + oniontop 10% of all pairsSmell alikemoderateCooked together18,214 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Pork kidneys
- Provide the main meat, whose texture turns tender or tough depending on cooking time.
- Lard
- Carries flavor and browns the kidneys and onion in the cooking fat.
- Flour
- Thickens the stew into a smooth, body-rich sauce when cooked with butter.
- Soft butter
- Combines with the flour into a roux that helps thicken the stew smoothly.
- Onion
- Adds sweetness and savory base flavor as it softens in the fat.
- Paprika
- Adds color and a mild sweet, smoky flavor to the stew.
The step that matters
Check the kidneys for doneness and do not overcook. Kidney becomes firm and tough when cooked too long, so check tenderness around 30 minutes and remove from heat once it is tender.
Swap the mace
How well each one fits the dish's main ingredients (pork, onion, pepper, flour, butter, cream, potato):
- Garlicfits better
- Thymefits better
- Parsleyfits better
- Macethe original
Fit is the average pairing score against pork, onion, pepper, flour, butter, cream, potato. 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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