Why it works: Beef and tomato are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 5,448 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Tomato Soup
Ingredients
Directions
Make the broth
Add beef and cold water to a pot.
Bring to a boil slowly.
Simmer for 2 hours until liquid is reduced by half.
Finish the soup
Remove the meat and add tomatoes.
Stew tomatoes for 45 minutes.
Strain the soup and serve hot.
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.
-
Beef + tomatotop 8% of all pairsSmell alikemoderateCooked together5,448 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Beef
- Gives the broth its meaty flavour and body as it simmers.
- Tomatoes
- Add acidity, sweetness and body as they stew into the broth.
The step that matters
Bring to a boil slowly. Starting in cold water and heating gradually lets fat and foam rise to the surface gradually, so they can be skimmed and the broth stays clearer.
“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 tomato soup 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.

Roast Beef211 recipes
Beef Loaf175 recipes
Corned Beef87 recipes
Beef Broth67 recipes