Why it works: Milk and flour are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 78,219 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Tomato Custard
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Strain the stewed tomatoes through a sieve.
Make the custard
In a bowl, combine the strained tomatoes, beaten eggs, milk, sugar, and flour. Mix well until smooth.
Pour the mixture into small baking tins.
Bake
Bake at 350°F (175°C) until set.
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.
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Tomato + milktop 15% of all pairsSmell alikemoderateCooked together2,226 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
-
Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Egg + milktop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
Milk and flour barely smell alike, yet cooks put them together in 78,219 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Set the custard as they cook, giving it a firm, sliceable structure.
- Milk
- Adds liquid and richness, producing a soft, creamy texture when baked.
- Stewed tomatoes
- Supply the main flavor and liquid base of the custard.
- Sugar
- Sweetens the custard and balances the acidity of the tomatoes.
- Flour
- Thickens the custard slightly, helping it hold together.
The step that matters
Bake until set. Eggs set as they heat, so underbaking leaves the custard runny while overbaking can make it curdle or turn rubbery. Check that the centre has just firmed before removing it.
Swap the tomato
How well each one fits the dish's main ingredients (egg, milk, sugar, flour):
- Arrowrootfits better
- Sweet potatofits better
- Asparagusfits better
- Tomatothe original
Fit is the average pairing score against egg, milk, sugar, flour. 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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