Why it works: Leek and shallot share more aroma than cooks usually use. They rank in the top 1% of all ingredient pairs, and cooks put them together in 64 recipes. Both carry 1-octen-3-ol, which smells mushroom, earthy. The science ↓
Vichyssoise
Serves 8Ingredients
Directions
Prepare the potatoes
Peel potatoes and remove all brown and discolored areas.
Boil potatoes for 20 minutes or until the interiors are soft when stuck with a knife; do not overcook.
Drain potatoes, retain liquid, let the potatoes cool, then mash with fork.
Make the soup
In a braiser over low heat, sauté leek and shallot bottoms in the butter until translucent, or about 10 minutes.
Add chicken base, white pepper, white wine, heavy cream, and milk; simmer until soup starts to bubble.
Add mashed potatoes and whisk vigorously; if the soup is too thick add some of the potato water.
Chill and serve
Chill the soup.
Just before serving, put the soup in a blender and blend on low speed for 20 seconds.
Garnish with shallot tops.
Nutrition, whole recipe (rough)
What these numbers assume: 9 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Chicken | 100g cooked | 165 |
| Potato | 1 medium (173g) baked | 161 |
| Milk | 1 cup (244ml) whole | 149 |
| Butter | 1 tbsp (14g) | 102 |
| Cream | 1 tbsp (15ml) heavy | 51 |
| Onion | 1 medium (110g) | 44 |
| Wine | 2 tbsp cooking wine (30ml) | 25 |
| Shallot | 1 tbsp minced (10g) | 7 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
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.
-
Leek + shallottop 1% of all pairsSmell alikestrongCooked together64 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
-
Potato + leektop 6% of all pairsSmell alikemoderateCooked together30 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
-
Potato + chickentop 7% of all pairsSmell alikemoderateCooked together2,756 recipes
Shared aroma: (z)-4-decenal (green, must).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Butter + white winetop 9% of all pairsSmell alikemoderateCooked together5,083 recipes
Shared aroma: ethyl octanoate (fruity, wine).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Break down when mashed to give the soup its thick, creamy body.
- Leeks
- Add a mild onion-like sweetness and aroma as they soften in butter.
- Butter
- Carries the aromatics and adds richness and a silky mouthfeel.
- Heavy whipping cream
- Adds fat for richness and a smooth, velvety texture.
- Milk
- Thins the soup and adds mild dairy flavor and body.
- White wine
- Adds acidity and aromatic depth to the soup base.
The step that matters
Do not overcook the potatoes. Overboiled potatoes absorb water and turn gluey or waterlogged when mashed, which thins the texture and makes the soup pasty instead of silky.
Swap the white pepper
How well each one fits the dish's main ingredients (potato, butter, leek, shallot, chicken, white wine, cream):
- Thymefits better
- Garlicfits better
- Tarragonfits better
- White pepperthe original
Fit is the average pairing score against potato, butter, leek, shallot, chicken, white wine, cream. 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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