Why it works: Onion and garlic match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 29,058 recipes. Both carry furaneol, which smells caramel, strawberry. The science ↓
Shirley Sauce
Ingredients
Directions
Prepare
Peel and slice the tomatoes.
Chop the peppers and onion.
Cook and strain
Boil the tomatoes, peppers, and onion in vinegar for 1 hour.
Strain the mixture.
Finish the sauce
Add garlic, Tabasco sauce, and cornstarch to the strained mixture. Stir well to combine.
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.
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.
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Onion + garlictop 1% of all pairsSmell alikestrongCooked together29,058 recipes
Shared aroma: furaneol (caramel, strawberry).
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Tomato + garlictop 3% of all pairsSmell alikemoderateCooked together14,076 recipes
Shared aroma: furaneol (caramel, strawberry).
-
Pepper + clovetop 5% of all pairsSmell alikestrongCooked together17,451 recipes
Shared aroma: ethyl octanoate (fruity, wine).
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + garlictop 8% of all pairsSmell alikemoderateCooked together27,090 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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, moisture and tangy flavour of the sauce.
- Red peppers
- Add sweetness, colour and fresh vegetable flavour to the sauce.
- Onion
- Adds savoury depth and aroma as it softens during boiling.
- Vinegar
- Adds acidity that brightens the sauce and helps preserve it.
- Cornstarch
- Thickens the strained liquid into a smoother, more viscous sauce.
The step that matters
Stir the cornstarch into the strained mixture. Cornstarch thickens only when heated in liquid and then stirred to distribute evenly, so clumps can form if it is not blended thoroughly before the sauce sets.
Swap the clove
How well each one fits the dish's main ingredients (tomato, pepper, onion, vinegar, sugar, garlic, sauce):
- Cuminfits better
- Corianderfits better
- Tarragonfits better
- Clovethe original
Fit is the average pairing score against tomato, pepper, onion, vinegar, sugar, garlic, sauce. 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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