Why it works: Rice and tomato match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and 3,065 recipes mention both. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Rice and Tomato Soup
Ingredients
Directions
Make the soup
Boil rice in 2 quarts of water until tender.
Season with salt and butter.
Move kettle to the side and add cooked, strained tomatoes.
Sweeten with baking soda, then season with salt, pepper, and sugar.
Serve
Serve over toasted whole wheat bread.
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 aroma chemistry they share, and how many recipes mention both.
-
Rice + tomatotop 6% of all pairsAroma overlapstrongMentioned together3,065 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Rice + wheattop 6% of all pairsAroma overlapstrongMentioned together423 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
-
Butter + breadtop 7% of all pairsAroma overlapmoderateMentioned together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Tomato + peppertop 7% of all pairsAroma overlapmoderateMentioned together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + wheattop 7% of all pairsAroma overlapmoderateMentioned together468 recipes
Shared aroma: 1-nonanal (fatty, waxy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Rice
- Cooks down into the soup, adding body and a thick, starchy texture.
- Tomatoes
- Provide the main flavor, acidity, and liquid base of the soup.
- Butter
- Adds richness and a smooth, rounded mouthfeel to the soup.
- Baking soda
- Raises the pH, mellowing the tomatoes' acidity.
- Sugar
- Adds sweetness that balances the tomatoes' acidity.
The step that matters
Sweeten with baking soda, then season. Baking soda reacts with the tomato acid and can quickly cause a soapy, metallic taste or foaming if added in excess. Add a small pinch and taste before seasoning further.
“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 Sunday pairing: one pairing, the chemistry behind it, and how to cook it. No spam, unsubscribe anytime.
Prefer an account? Create a free account for sign-in; Pro adds the full results and chemistry.
Tomato Soup526 recipes
Brown Bread461 recipes
Cream of Tomato Soup107 recipes
Rice Fritters84 recipes