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 Sauce
Ingredients
Directions
Make the sauce
Add 1 small chopped onion, 1 branch chopped parsley, and 1 branch chopped celery to 1 pint stewed tomatoes, with 1 bay leaf and 1 blade mace. Simmer slowly for 10 minutes.
Rub to a pot until smooth 1 tablespoon each of butter and flour in a hot saucepan.
Strain the sauce into the pan through a sieve, stir constantly until it boils, and add pepper and salt to taste.
Notes
Any kind of chopped raw meat may be added if wanted stronger.
It keeps well sealed, and it saves time to put up a few bottles of the sauce when canning tomatoes in the fall.
Nutrition, whole recipe (rough)
Counts 7 of 8 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 7 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Butter | 1 tbsp (14g) | 102 |
| Onion | 1 medium (110g) | 44 |
| Tomato | 1 medium (123g) | 22 |
| 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 |
| Mace | 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).
-
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).
-
Tomato + parsleytop 8% of all pairsSmell alikemoderateCooked together5,398 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 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
- Stewed tomatoes
- Form the base of the sauce and supply its main body and acidity.
- Butter
- Enriches the sauce and adds fat for a smoother mouthfeel.
- Flour (in the method)
- Thickens the sauce as it cooks with the butter.
The step that matters
Stirring until it boils. Flour mixed with hot butter can clump or scorch if not kept moving, and constant stirring helps the thickener disperse evenly as the sauce comes to a boil.
Swap the mace
How well each one fits the dish's main ingredients (tomato, butter, onion, parsley, pepper):
- Thymefits better
- Garlicfits better
- Celeryfits better
- Macethe original
Fit is the average pairing score against tomato, butter, onion, parsley, 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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