Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Tomato Soup with Sago
Ingredients
Directions
Prepare the tomatoes
Put 1 quart of stewed or 1 can of tomatoes into a saucepan; add 1 slice of onion, 1 bay leaf, 1 sprig of parsley; simmer gently for 10 minutes.
While the tomatoes simmer, soak 4 tablespoons of pearl sago in a pint of water for 2 hours.
After soaking, drain the sago and cook it slowly in the saucepan until it becomes clear.
Press the tomatoes.
Finish and serve
Strain the soup through a fine sieve; add the sago and a pint of water or stock; stir in 1 tablespoon of butter; add salt and pepper; serve immediately.
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 |
|---|---|---|
| Butter | 1 tbsp (14g) | 102 |
| Onion | 1 medium (110g) | 44 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Bay Leaf | 1 leaf (0.6g) | 2 |
| Parsley | 1 tbsp chopped fresh (3.8g) | 1 |
| 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.
-
Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Parsley + buttertop 15% of all pairsSmell alikemoderateCooked together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Pearl sago (in the method)
- Swells when cooked until clear, giving the soup a thickened, slightly gelatinous body.
- Tomatoes (in the method)
- Provide the main body, colour and acidic tomato flavour of the soup.
- Butter
- Adds richness and a smooth, rounded mouthfeel to the finished soup.
The step that matters
Cooking the sago until clear. Sago must be cooked slowly and fully, because its starch only becomes clear and tender once the granules have gelatinized; undercooked sago stays opaque and chewy.
Swap the onion
How well each one fits the dish's main ingredients (parsley, butter, pepper):
- Carrotfits better
- Shallotfits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against parsley, butter, 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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