Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and 81,283 recipes mention both. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Cream of Tomato Soup
Ingredients
Directions
Stew the peeled tomatoes with a pinch of baking soda until soft.
Strain the mixture and return it to the heat with the hot boiled milk.
Season with salt and pepper, then add the 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 aroma chemistry they share, and how many recipes mention both.
-
Milk + buttertop 7% of all pairsAroma overlapmoderateMentioned together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Tomato + peppertop 7% of all pairsAroma overlapmoderateMentioned together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + milktop 15% of all pairsAroma overlapmoderateMentioned together2,226 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
-
Pepper + buttertop 21% of all pairsAroma overlapmoderateMentioned together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Tomato + buttertop 22% of all pairsAroma overlapmoderateMentioned 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
- Peeled tomatoes
- Provide the main body and flavour of the soup as they soften when stewed.
- Baking soda
- Neutralises some of the tomato's acidity, making the soup smoother and less sharp.
- Hot boiled milk
- Adds creaminess and mellows the tomato flavour into a smooth, rich soup.
- Butter
- Adds fat for richness and a silky mouthfeel.
- Rolled crackers
- Thicken the soup slightly and add body as they absorb liquid.
The step that matters
Adding the hot milk. Tomato acid can curdle milk if they combine too aggressively. Returning the strained tomatoes to heat with hot milk, with the baking soda already reducing acidity, helps keep the soup smooth rather than grainy or split.
“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
Tomato Soup526 recipes
Tomato Bisque61 recipes
Cream Tomato Soup28 recipes
Tomato Fritters23 recipesThe 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.