Why it works: Flour and butter 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 ↓
Potato-Crust for Boiled Fruit Puddings
Ingredients
Directions
Make the crust
Boil the potatoes until tender, then mash them finely.
Combine mashed potatoes and sifted flour in a bowl, mixing well with a chopping knife.
Chop in butter and salt until the mixture is light and free from clogs.
Add very cold water gradually to form a paste, mixing with the chopping knife.
Gather dough into a round heap on a floured surface.
Roll dough into a round shape, about 1 inch thick in the center and thinner at the edges.
Wrap the pudding
Prepare a thick pudding cloth by scalding and wringing it out.
Dredge the cloth with flour.
Place rolled crust in the center of the cloth.
Add fruit filling in the middle.
Gather edges of crust over fruit.
Press gently to secure filling.
Wrap cloth around pudding.
Tie tightly with string, leaving space for pudding to rise.
Boil and serve
Boil pudding in water, ensuring it does not take in water during cooking.
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.
-
Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Potato + flourtop 15% of all pairsSmell alikemoderateCooked together5,355 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Potatoes
- Mashed into the dough, they add moisture and a tender, soft texture to the crust.
- Flour
- Forms the structure of the dough that holds the crust together while boiling.
- Butter
- Rubbed into the flour, it adds richness and tenderness to the crust.
The step that matters
Tying the pudding cloth. If the cloth is not tied tightly, or the pudding is not sealed well, water can enter during boiling and make the crust soggy. Leaving room in the cloth lets the pudding expand as it cooks.
Swap the potato
How well each one fits the dish's main ingredients (flour, butter):
- Shallotfits better
- Leekfits better
- Arrowrootfits better
- Potatothe original
Fit is the average pairing score against flour, butter. 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.
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.
Deep-Fried Potato Balls119 recipes
Orange Potato Bread80 recipes
White Cake431 recipes
Pound Cake373 recipes