Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Cream Tomato Soup
Ingredients
Directions
Place the tomatoes in a pot over medium heat and stew until soft, adding the baking soda.
Strain the mixture to remove seeds.
Return the strained mixture to the pot and add the hot milk.
Season with salt, pepper, and butter.
Stir in the rolled crackers 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.
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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + milktop 15% of all pairsSmell alikemoderateCooked together2,226 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Pepper + buttertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Tomato + buttertop 22% of all pairsSmell alikemoderateCooked together6,918 recipes
Shared aroma: 3-hexenal (apple, fruity).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Tomatoes
- Provide the main body and tangy flavor of the soup once stewed and strained.
- Baking soda
- Neutralizes tomato acidity, softening the flavor and helping the soup avoid curdling with milk.
- Milk
- Adds richness and creaminess, giving the soup its smooth, pale body.
- Butter
- Adds fat for a rounder, richer mouthfeel and flavor.
- Rolled crackers
- Thicken the soup slightly as they absorb liquid and soften.
The step that matters
Adding the hot milk to the tomatoes. Tomato acid can cause milk to curdle. The baking soda neutralizes much of that acidity, and adding hot milk to the hot strained tomato base, rather than letting it cool or boil hard, helps keep the soup smooth.
Swap the tomato
How well each one fits the dish's main ingredients (milk, pepper, butter):
- Potatofits better
- Capsicumfits better
- Tomatothe original
- Asparagusfits about as well
Fit is the average pairing score against milk, pepper, butter. 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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