Why it works: Potato and leek work together. They rank in the top 6% of all ingredient pairs, and cooks put them together in 30 recipes. Both carry 1-octen-3-ol, which smells mushroom, earthy. The science ↓
Wyau Sir Fôn
Ingredients
Directions
Prepare the vegetables
Boil potatoes until soft; drain.
Chop the leeks and boil for ten minutes; drain.
Blend potatoes and leeks in a large bowl; add pepper and mash.
Make the sauce
Melt the butter in a saucepan and remove from the heat.
Blend flour into butter until smooth; slowly stir in the milk.
Stirring constantly, bring mixture to a boil for about three minutes (until mixture thickens).
Add half of the cheese and season with salt and pepper.
Assemble and bake
Remove shells from eggs; cut each egg in half and place in a slightly greased casserole baking dish.
Arrange potatoes and leeks around the edge of the dish; pour sauce over the top.
Sprinkle remaining cheese over the dish, and brown slightly under oven broiler.
Serve hot.
Nutrition, whole recipe (rough)
What these numbers assume: 9 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Flour | 1 cup (125g) all-purpose | 455 |
| Potato | 1 medium (173g) baked | 161 |
| Milk | 1 cup (244ml) whole | 149 |
| Cheese | 1 oz (28g) cheddar | 113 |
| Butter | 1 tbsp (14g) | 102 |
| Egg | 1 large egg (50g) | 78 |
| Onion | 1 medium (110g) | 44 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Salt | 1 tsp (6g) | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
Steps grouped into stages for easier reading; the method is the source's own.
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.
-
Potato + leektop 6% of all pairsSmell alikemoderateCooked together30 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Flour + leektop 8% of all pairsSmell alikestrongCooked together328 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Cheese + buttertop 8% of all pairsSmell alikemoderateCooked together7,962 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Bulk of the casserole, giving a soft, mashed body that holds the sauce.
- Flour
- Thickens the butter and milk into a smooth sauce as it cooks.
- Butter
- Fat that carries the flour and adds richness to the sauce.
- Milk
- Liquid base of the sauce, which thickens when heated with the flour.
- Caerphilly cheese
- Melts into the sauce and browns on top for flavour and a golden crust.
- Eggs
- Hard-boiled halves add firmness and a mild, rich bite to the dish.
The step that matters
Bringing the sauce to a boil. Flour thickens milk only when it reaches a boil and is stirred constantly. Stopping early leaves a thin sauce, while stirring too little can scorch or lump it.
Swap the leek
How well each one fits the dish's main ingredients (potato, cheese, butter, flour, egg, milk, pepper):
- Asparagusfits better
- Chivefits better
- Capsicumfits better
- Leekthe original
Fit is the average pairing score against potato, cheese, butter, flour, egg, milk, pepper. 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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