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 ↓
Cider Sauce
Ingredients
Directions
In a saucepan over medium heat, melt the butter.
Once it bubbles, stir in the flour and cook for 1 minute.
Slowly add the stock and cook for 10 minutes.
Add the cider and bring to a boil.
Strain the sauce and serve with boiled ham.
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.
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + cidertop 19% of all pairsSmell alikemoderateCooked together1,012 recipes
Shared aroma: ethyl octanoate (fruity, wine).
-
Flour + cidertop 29% of all pairsSmell alikelowCooked together812 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
- Butter
- Adds fat and richness, carrying flavour into the sauce.
- Flour
- Thickens the sauce when cooked briefly with melted butter into a roux.
- Highly-seasoned stock
- Forms the savoury base of the sauce, giving it most of its liquid and flavour.
- Cider
- Adds acidity and fruity sweetness that balance the salty stock.
The step that matters
Slowly add the stock. Adding liquid gradually to the hot roux lets the flour disperse evenly, preventing lumps. Cooking the mixture afterward lets the starch fully thicken the sauce.
“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.
More cider sauce recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Wine Sauce (for stewed fruit)186 recipes
Caper Sauce180 recipes
Brown Sauce141 recipes
Dutch Sauce74 recipes