Why it works: Sweet potato and mustard match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 108 recipes. Both carry guaiacol, which smells smoky, sweet. The science ↓
Sweet Potatoes Stuffed
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Bake and prepare
Bake the sweet potatoes at 400°F (200°C) until tender.
Cut each potato in half and trim the ends so they stand upright.
Scoop out the insides, leaving the skins intact.
Make the filling
Mash the potato with the yolks of the hard-boiled eggs.
Mix in cream, salt, pepper, and mustard if desired.
Fill and finish
Fill the potato skins with the mixture.
Top each with a piece of butter.
Bake until well browned.
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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Sweet potato + mustardtop 6% of all pairsSmell alikestrongCooked together108 recipes
Shared aroma: guaiacol (smoky, sweet).
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Cream + buttertop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Sweet potato + peppertop 11% of all pairsSmell alikemoderateCooked together1,015 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Sweet potatoes
- Provide the starchy base for the filling and the shell that holds it upright.
- Hard-boiled eggs
- Yolks add richness and a smooth, creamy texture to the mashed filling.
- Cream
- Adds moisture and fat so the mashed potato becomes smooth and spoonable.
- Butter
- Adds fat and richness on top, helping the surface brown in the oven.
The step that matters
Scoop out the insides, leaving the skins intact. The skins must stay whole to hold the filling. Tearing them lets the mixture leak out while baking, so scoop gently with a spoon and stop short of the skin.
Swap the mustard
The recipe marks mustard as optional. How well each one fits the dish's main ingredients (sweet potato, egg, cream, pepper, butter):
- Spinachfits better
- Capsicumfits better
- Chivefits better
- Mustardthe original
Fit is the average pairing score against sweet potato, egg, cream, pepper, 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.
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