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 ↓
Eggs in Tomato Sauce
Ingredients
Directions
Make the sauce
In a saucepan, combine tomatoes, butter, and flour.
Rub the flour smooth in a little tomato juice and season with salt, pepper, and sugar.
Boil for a few moments, then strain through a sieve and add baking soda.
Cook and serve
Drop in the eggs and cook, basting often with the sauce.
Once done, place each egg on a piece of toast and pour sauce around it.
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.
-
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 + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
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).
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
- Provide the liquid base and acidity for the sauce.
- Butter
- Adds richness and fat that gives the sauce a smoother mouthfeel.
- Flour
- Thickens the tomato liquid into a smooth, body-rich sauce.
- Baking soda
- Neutralizes some of the tomato's acidity, mellowing the sauce's sharp taste.
- Eggs
- Set in the simmering sauce, providing the main protein and soft texture.
The step that matters
Basting the eggs. Spooning sauce over the eggs helps the whites set evenly while the yolks stay soft, since the surface cooks faster than the centre. Cooking too hard or too long makes the yolks firm and chalky.
Swap the tomato
How well each one fits the dish's main ingredients (butter, flour, pepper, sugar, egg):
- Capsicumfits better
- Chivefits better
- Shallotfits better
- Tomatothe original
Fit is the average pairing score against butter, flour, pepper, sugar, egg. 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.
More eggs in tomato sauce recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Tomato Soup526 recipes
Cream of Tomato Soup107 recipes
Tomato Bisque61 recipes
Cream Tomato Soup28 recipes