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 ↓
Sweetbreads with Tomatoes
Ingredients
Directions
Make the tomato sauce
Slice two quarts of ripe tomatoes.
Stew until they break.
Strain through a sieve into a sauce-pan.
Finish and serve
Add four or five sweetbreads that have been well trimmed and soaked in warm water.
Stir in two or three ounces of butter rolled in flour, with salt and cayenne pepper to taste.
Just before serving, add the beaten yolks of two eggs.
Serve in a deep dish, with the tomatoes poured over the sweetbreads.
Nutrition, whole recipe (rough)
What these numbers assume: 7 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Flour | 1 cup (125g) all-purpose | 455 |
| Butter | 1 tbsp (14g) | 102 |
| Egg | 1 large egg (50g) | 78 |
| Tomato | 1 medium (123g) | 22 |
| Cayenne | 1 tsp (1.8g) | 6 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Salt | 1 tsp (6g) | 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).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Flour + peppertop 19% of all pairsSmell alikemoderateCooked together50,459 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Tomatoes
- Break down into the sauce, adding moisture, body and bright acidity.
- Sweetbreads
- The main protein, becoming tender as they simmer in the sauce.
- Butter
- Adds richness and fat, and with the flour helps thicken and smooth the sauce.
- Flour
- Rolled into the butter, it thickens the tomato sauce so it coats the sweetbreads.
- Eggs
- Their beaten yolks enrich and thicken the sauce when stirred in at the end.
The step that matters
Adding the beaten egg yolks. Egg yolks thicken by gentle heat and scramble if the sauce is boiling or left on the heat too long. Add them just before serving, off the boil, and stir steadily so the sauce turns smooth and creamy rather than grainy.
Swap the tomato
How well each one fits the dish's main ingredients (butter, flour, egg, pepper):
- Chivefits better
- Shallotfits better
- Asparagusfits better
- Tomatothe original
Fit is the average pairing score against butter, flour, egg, 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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