Why it works: Pepper and tomato are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,923 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
A Nice Sauce for Meats or Fish
Ingredients
Directions
Prepare
Chop the onions, peppers, and tomatoes finely.
Combine the chopped vegetables with the salt.
Cook and bottle
Stew the mixture slowly for several hours until it thickens.
Put the hot sauce into bottles and seal while hot.
Nutrition, whole recipe (rough)
What these numbers assume: 4 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Onion | 1 medium (110g) | 44 |
| Tomato | 1 medium (123g) | 22 |
| Pepper | 1 tsp ground (2.3g) | 6 |
| Salt | 1 tsp (6g) | 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.
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 + tomatotop 7% of all pairsSmell alikemoderateCooked together17,923 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).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 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
- Tomatoes
- Provide the bulk of the liquid and body that cooks down into the sauce.
- Onions
- Add savoury sweetness and aroma as they soften during the long stew.
- Green peppers
- Contribute fresh, slightly bitter flavour and some body to the sauce.
- Fine salt
- Draws moisture from the vegetables and seasons the sauce throughout.
The step that matters
Stewing slowly until thickened. Long, gentle cooking lets water evaporate and the vegetables break down, which thickens the sauce and concentrates its flavour. Too little time leaves it thin and watery.
Swap the onion
How well each one fits the dish's main ingredients (pepper, tomato):
- Capsicumfits better
- Eggplantfits better
- Carrotfits better
- Onionthe original
Fit is the average pairing score against pepper, tomato. 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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