Why it works: Butter and milk 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 ↓
Noodle Soup
Ingredients
Directions
Make the noodle dough
Beat the eggs.
Mix in the salt.
Add enough flour to form a very stiff dough.
Knead until smooth.
Take a piece the size of a walnut.
Roll it thin like a wafer.
Roll all the pieces together like a jelly roll.
Cut into very narrow strips.
Cook the noodles
Stir the strips slowly into boiling broth 30 minutes before serving.
Mix the egg, butter, sour milk, and baking soda.
Add flour to make a thin dough.
Cut into fine strips.
Drop into boiling beef soup.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
Flour and butter barely smell alike, yet cooks put them together in 124,287 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
- Bind the dough and add richness and structure to the noodles.
- Flour
- Provides the gluten structure that gives the noodles their body.
- Butter
- Adds fat for tenderness and flavor in the dough.
- Sour milk
- Its acidity reacts with the baking soda and adds tang to the dough.
- Baking soda
- Reacts with the acid in the sour milk to lighten the dough.
The step that matters
Stir the strips slowly into boiling broth. Dough strips added to boiling liquid can clump together or break apart if stirred roughly. Gentle stirring keeps them separate and lets them cook evenly through.
“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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