Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Stewed Saurkraut
Ingredients
Directions
Prepare the sauce
Boil the sauerkraut in water until tender.
Melt the butter in a pan, then mix in the flour and bake until golden.
Add the bouillon to the flour mixture and bring to a boil.
Combine and serve
Drain the sauerkraut and place it in a saucepan.
Pour the sauce over the sauerkraut and stir well.
Bring to a boil again, then add the chopped onion and salt.
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.
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.
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Flour + oniontop 17% of all pairsSmell alikemoderateCooked together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour 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
- Sauerkraut
- Forms the body of the dish and gives its tangy, savoury flavour.
- Butter
- Adds fat and richness to the roux and carries flavour through the sauce.
- Flour
- Thickens the sauce when cooked with fat, giving it body.
- Bouillon
- Liquid base of the sauce that adds savoury depth.
- Browned onion
- Adds sweetness and deeper savoury flavour from its browning.
The step that matters
Bake the butter and flour until golden. Cooking the flour in fat until golden toasts it and removes raw starch taste, and an undercooked roux leaves the sauce pasty. Stop at golden to avoid bitterness.
Swap the onion
How well each one fits the dish's main ingredients (butter, flour):
- Shallotfits better
- Leekfits better
- Arrowrootfits better
- Onionthe original
Fit is the average pairing score against butter, 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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