Why it works: Tomato and onion are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 20,633 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Wine Sauce
Ingredients
Directions
Make the sauce
Combine port, walnut catsup, tomato catsup, chopped onion, and curry powder in a saucepan.
Bring to a boil and cook for 3 minutes.
Remove from heat and let cool.
Store
Bottle the sauce and keep it well corked.
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.
Photo for illustrative purposes only · Contact us to use it
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 + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Walnut + tomatotop 13% of all pairsSmell alikemoderateCooked together498 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Walnut + oniontop 15% of all pairsSmell alikemoderateCooked together1,771 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Port
- Adds sweetness and wine-based depth to the sauce's flavour.
- Walnut catsup
- Contributes a dark, savoury, slightly sweet flavour base.
- Tomato catsup
- Adds acidity and tomato sweetness that balance the sauce.
- Onion
- Provides savoury aromatic flavour that softens during simmering.
- Curry powder
- Supplies warm, aromatic spice notes that carry through the sauce.
Swap the walnut
How well each one fits the dish's main ingredients (tomato, onion):
- Beansfits better
- Chickpeafits better
- Black-eyed peafits better
- Walnutthe original
Fit is the average pairing score against tomato, onion. 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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