Why it works: Beans and tomato match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 2,713 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Spanish Beans
Ingredients
Directions
Prepare and cook
Soak the pink beans overnight.
In a large pot, combine the soaked beans, condensed tomatoes, water, sliced onion, salt pork (or olive oil), chili powder, red pepper, and salt.
Bring to a boil, then reduce heat and cook slowly for several hours, stirring occasionally. Add more water if necessary to keep the beans covered.
Finish
When the beans are tender, stir in the grated cheese.
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.
-
Beans + tomatotop 1% of all pairsSmell alikestrongCooked together2,713 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beans + oniontop 7% of all pairsSmell alikestrongCooked together5,242 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
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).
-
Onion + porktop 10% of all pairsSmell alikemoderateCooked together18,214 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
- Pink beans
- Form the bulk of the dish and become tender and creamy during long, slow simmering.
- Condensed tomatoes
- Add acidity and body to the cooking liquid, flavouring the beans as they simmer.
- Salt pork or olive oil
- Adds fat and savoury richness that carries the flavour of the dish.
- Grated cheese
- Melts into the hot beans, adding richness and a savoury, slightly salty finish.
The step that matters
Keeping the beans covered with liquid. Beans that are exposed to air while simmering can become dry and unevenly cooked, and their skins may split. Keeping them submerged ensures even tenderness and a smooth, moist texture.
Swap the onion
How well each one fits the dish's main ingredients (beans, tomato, pork, pepper, cheese):
- Capsicumfits better
- Potatofits better
- Lettucefits better
- Onionthe original
Fit is the average pairing score against beans, tomato, pork, pepper, cheese. 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.
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
Pork Cake107 recipes
Macaroni and Cheese102 recipes