Why it works: Tomato and pepper 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 ↓
Chili Sauce
Ingredients
Directions
Make the sauce base
Combine the tomatoes, green peppers, onion, sugar, salt, and vinegar.
Chop the peppers and onion.
Boil the mixture for 1 hour.
Prepare the limes
Take the limes while perfectly green, cut them in half, and clean entirely of the pulp.
Put the limes in salt water strong enough to bear an egg for 6 weeks.
Transfer the limes to cold water for 24 hours, changing the water every three hours.
Boil the limes in saleratus water until tender enough to run a straw through (use one teaspoon salaratus per 6 quarts of water).
Put the limes again in cold water, changing it several times.
Make the syrup and finish
For each pound of limes, add 2½ pounds of loaf sugar and 3 pints of water.
Boil the syrup for 15 or 20 minutes to clear it before adding the limes.
Boil the mixture for 1 hour and 15 minutes.
Nutrition, whole recipe (rough)
Counts 6 of 7 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 6 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Sugar | 1 tbsp (12.5g) granulated | 49 |
| Onion | 1 medium (110g) | 44 |
| Tomato | 1 medium (123g) | 22 |
| 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.
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.
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 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).
-
Vinegar + oniontop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Tomatoes
- Provide the main body and liquid base of the sauce.
- Sugar
- Adds sweetness that balances the acidity of the vinegar.
- Vinegar
- Adds acidity that preserves the sauce and gives it sharpness.
- Green peppers
- Add vegetable bulk and a fresh, slightly bitter flavour to the sauce.
- Limes (in the method)
- Supply the characteristic tart flavour once softened and sweetened in syrup.
The step that matters
Boil the limes in saleratus water until tender. Stop when a straw passes through easily. Undercooked limes stay tough and fibrous, while overcooking breaks them down. Rinsing afterward removes the alkaline residue that would otherwise taint the flavour.
Swap the onion
How well each one fits the dish's main ingredients (sugar, vinegar, tomato, pepper):
- Capsicumfits better
- Cucumberfits better
- Mustardfits better
- Onionthe original
Fit is the average pairing score against sugar, vinegar, tomato, pepper. 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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