Why it works: Butter and cream are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓
Sweet Potato Croquettes
Ingredients
Directions
Prepare the mixture
In a saucepan, combine the mashed sweet potatoes and butter, then heat until smoking hot.
Remove from heat and stir in the cream and egg yolks.
Allow the mixture to cool, then form it into croquettes.
Coat and chill
Roll each croquette in the beaten egg and then in cracker crumbs.
Place the croquettes on a platter and refrigerate for several hours.
Fry
Fry the croquettes in hot fat until golden brown.
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.
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Sweet potato + buttertop 20% of all pairsSmell alikemoderateCooked together1,491 recipes
Shared aroma: 2,3-pentanedione (butter, sweet).
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Cream + eggtop 24% of all pairsSmell alikelowCooked together42,166 recipes
Shared aroma: acetic acid (sour, vinegar).
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Sweet potato + eggtop 25% of all pairsSmell alikemoderateCooked together843 recipes
Shared aroma: 2-nonenal (fatty, green).
Cream and egg barely smell alike, yet cooks put them together in 42,166 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
- Sweet potatoes
- Provide the bulk and moisture that give the croquettes a soft, tender interior.
- Egg yolks
- Add richness and help bind the mixture so it holds its shape.
- Butter
- Adds fat for richness and a smoother, more tender texture.
- Beaten egg
- Acts as a binder so the cracker crumbs adhere to the croquettes.
- Cracker crumbs
- Form a crisp, golden outer crust when fried.
The step that matters
Chilling the coated croquettes. Refrigerating the shaped croquettes for several hours firms the mixture and sets the egg coating, so they hold their shape and do not fall apart in the hot fat.
Swap the sweet potato
How well each one fits the dish's main ingredients (butter, cream, egg):
- Leekfits better
- Potatofits better
- Asparagusfits better
- Sweet potatothe original
Fit is the average pairing score against butter, cream, egg. 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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