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 ↓
Comfort Food
Ingredients
Directions
Prepare
Place the nearly-full cup of basmati rice into a sieve and rinse under cold running water for a few minutes, then drain over a measuring cup. While rinsing, peel the onions and potatoes.
Open the sardine tin, pour the fish and juices into a deep dish, then remove each fish piece with a fork and knife, slit it carefully into two to remove the bone, and discard the bones in the can.
Make the base
Dice the potatoes and put them into a small pan for part-boiling. Boil water in a kettle, pour it into the pan, and simmer for about 7 minutes. Coarsely chop the onion.
Fry the onion and defrost some frozen garlic, ginger, and chilli.
Add cumin seeds while the onion cooks, then stir in the tomato juices from the sardine tin.
Add about 1 teaspoon each of turmeric, red chilli, and ground coriander, 2 heaped teaspoons garam masala, and ½ teaspoon salt; simmer for about 4 minutes.
Add the drained part-boiled potato chunks, stir, then add the drained rice.
Cook and serve
Stir until coated, then add about 1.5 cups water, stir, and bring to a boil over high heat.
Just before boiling, add the fish pieces and fresh chopped coriander.
Return to a boil, then reduce to the lowest flame, cover with a lid (vent open), and simmer for about 25 minutes.
Halfway through, lift the lid, stir gently, then replace lid and simmer for another 15 minutes. After about 30 minutes total, turn off heat, let rest 15 minutes, then serve.
Nutrition, whole recipe (rough)
Counts 4 of 5 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 4 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Sardine | 100g canned drained | 208 |
| Potato | 1 medium (173g) baked | 161 |
| Onion | 1 medium (110g) | 44 |
| Tomato | 1 medium (123g) | 22 |
| Pilchard | 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).
-
Potato + tomatotop 5% of all pairsSmell alikestrongCooked together2,798 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 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
- Basmati rice (in the method)
- Absorbs the cooking water and sets into the fluffy grains that form the dish's body.
- Onions
- Soften and turn sweet as they cook, forming the savoury base of the dish.
- Potatoes
- Partly boiled first, then add starchy body and soft pieces that blend into the rice.
- Sardines
- Oily fish adds rich, savoury flavour and tender flakes to the finished rice.
- Tomato juices from the tin
- Add acidity and moisture that carry the spices through the rice as it cooks.
The step that matters
Simmering covered on the lowest flame. Trapped steam cooks the rice evenly while the water is absorbed. Lifting the lid releases steam and can leave grains unevenly cooked, so keep the lid on except for the one halfway stir.
Swap the tomato
How well each one fits the dish's main ingredients (onion, potato):
- Chivefits better
- Leekfits better
- Okrafits better
- Tomatothe original
Fit is the average pairing score against onion, 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.
You might also like
Tomato Soup526 recipes
Potato Croquettes255 recipes
Cream of Tomato Soup107 recipes
Potato Rolls78 recipesThe 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.