Crème Vichyssoise; Chilled Leek and Potato Soup
Vichyssoise is the classic chilled soup of leeks and potatoes: the vegetables are sweated gently in butter, simmered in stock, then blended until completely smooth and finished with cream and milk. It is served ice-cold, pale and silky, with snipped chives on top. One serving is about 300 g.
Vichyssoise was created in 1917 by Louis Diat, a French chef working at the Ritz-Carlton in New York, who remembered his mother cooling the leek and potato soup of his childhood with cold milk on hot summer days in the spa town of Vichy. He named the chilled version after Vichy, and it became one of the most famous soups in America. Served hot, the same soup is the French potage Parmentier — the only difference is the temperature.
Pairs well with: Smoked salmon, crusty baguette & white wine
Provenance
France
French Classic
Nordic & European
Time Dedication
55m
20m prep • 35m cook
Batch Yield
6 Servings
232 kcal per serving
1 serving ≈ 300 g
Technical Skill
Intermediate
Medium (Blend and Chill)
Meal Timing & Digestive Fit
Breakfast
Not Advised
Lunch
Prime Metabolic Fit
Dinner
Ideal Hearty Main
Snack & Tea
Inappropriate
French Classic
Photo: stu_spivack, CC BY-SA 2.0, via Wikimedia Commons
The Heritage Formulary
Estimated cost: Low — about $1.50 per serving at home (USD)
A good vichyssoise is judged by texture and temperature: it must be completely smooth, pale ivory, and properly ice-cold, never just cool.
Execution Methodology & Culinary Technique
Prep Stage: Wash the Leeks, Dice the Potatoes
20 Mins • Prep
Split the leeks lengthways and rinse them under cold water until every trace of grit is gone — leeks hide soil between their layers, and one grain of grit ruins a silky soup. Dice the potatoes into even 2 cm pieces so they all cook at the same speed, and have the cream and milk chilled and ready.
Maestro Tip: Use only the white and pale green parts of the leek: the dark tops are tough and make the soup taste grassy.
10 minutes Medium-low heat, about 140°C (285°F)
Melt the butter in a large pot over medium-low heat. Add the leeks and onion with a pinch of salt and cook gently, stirring often, for about 10 minutes until they are completely soft and translucent. They must not colour at all — any browning will darken the soup and add a bitter note.
If the leeks start to catch, add a spoonful of stock and lower the heat; patience here is what keeps the soup pale.
Done when: Leeks and onion are soft, sweet-smelling and still white.
25 minutes Low simmer, about 95°C (200°F)
Add the diced potatoes and the warm stock, bring to a gentle simmer and cook, covered, for about 25 minutes until the potatoes fall apart when pressed with a spoon. Do not boil hard — a rolling boil makes the potatoes gluey.
The potatoes are done when a piece crushes with no resistance at all; undercooked potato makes a grainy soup.
Done when: Potatoes are falling apart at a touch; the stock tastes sweet and oniony.
5 minutes No heat — off the stove
Take the pot off the heat and blend the soup in batches, or with a stick blender, until it is completely smooth — about 2 minutes per batch. Pass it through a fine sieve into a clean bowl, pressing with a ladle, to catch any last fibres. The soup should pour like thin cream.
Blend in batches and never fill a jug blender more than half full with hot soup, or it can blow the lid off.
Done when: The soup is velvety and pours in a smooth ribbon with no lumps.
2 minutes No heat — room temperature
Let the soup cool for 20 minutes, then stir in the cream and milk. Taste and adjust the salt and white pepper — cold food tastes less salty than hot food, so season a little more boldly than you think you need, then check again once it is chilled.
Do not add the cream while the soup is still steaming hot: it can split and turn grainy.
Done when: The soup is pale ivory, smooth, and tastes seasoned even at room temperature.
2 hours Fridge, at 4°C (40°F) or below
Cover the bowl and chill for at least 2 hours, or overnight, until the soup is properly cold all the way through. Stir before serving — it thickens as it chills — and loosen with a splash of cold milk if it is thicker than pouring cream. Serve in chilled bowls with snipped chives on top.
Chill the serving bowls too: a cold soup in a warm bowl loses its chill before the first spoonful.
Done when: The soup is ice-cold, silky, and holds a swirl when stirred.
Finishing Touches & Plating
Serve the vichyssoise ice-cold in chilled bowls, with chives snipped over the top just before it reaches the table. It needs at least 2 hours of chilling on top of the cooking time, so make it in the morning for lunch, or the night before.
Nutritional Physiology & Benefits
Energy
232
kcal / serving
Protein
4g
Complete AA
Carbs
28g
Complex
Fats
12g
Healthy
| Energy | 232 kcal |
| Protein | 4 g |
| Carbohydrates | 28 g |
| Fat | 12 g |
| Fibre | 3.5 g |
| Sugar | 6.0 g |
| Sodium | 456 mg |
| Energy | 77 kcal |
| Protein | 1.4 g |
| Carbohydrates | 9.4 g |
| Fat | 4.1 g |
| Fibre | 1.2 g |
| Sugar | 2 g |
| Sodium | 152 mg |
Nutrition values are estimated — calculated from USDA FoodData Central values for the listed ingredients.
Vitamins & minerals: Provides vitamin C and vitamin B6 from potato and leek, potassium, and calcium from cream and milk. All nutrition values are estimated.
Light for a Cream Soup
At about 232 kcal a bowl, vichyssoise is lighter than most cream soups because potatoes and leeks, not butter and cream, do most of the work.
Potassium from Leek and Potato
Leeks and potatoes are naturally rich in potassium, which the body uses to balance fluid and support normal blood pressure.
Cooling on a Hot Day
A chilled soup hydrates and refreshes without the heaviness of a hot meal, which is why it became a summer classic.
Food Pairings
To optimize nutrient absorption and elevate the sensory depth, pair with these authentic accompaniments:
Sides
Smoked Salmon
A few ribbons of smoked salmon add salt and richness that play against the cool, mild soup, and the pink against the pale ivory looks beautiful.
Crusty Baguette
Good bread is the right tool for a smooth soup: it gives the meal something to chew and soaks up the last spoonfuls.
Vegetables
Simple Green Salad
A sharp, lemony salad after the soup wakes the palate back up after all that cool creaminess.
Drinks
Cold White Wine
A dry, cold white wine matches the soup's temperature and its gentle richness without fighting it.
Complete menu
Start with vichyssoise and snipped chives, follow with smoked salmon and a green salad, and finish with a lemon tart; a cold white wine carries the whole meal.
Digestive Guardrails
To prevent digestive distress, sluggishness, or palate clash, avoid pairing the dish with these elements:
Boiling After Adding Cream
Boiling the soup once the cream is in can make it split and turn grainy, so only ever reheat it gently and never let it boil. This is general information, not medical advice.
Leaving a Cream Soup Out for Hours
A cream soup left at room temperature for more than 2 hours can grow bacteria, so chill it promptly and keep it refrigerated. This is general information, not medical advice.
General information only, not medical advice — consult a doctor for personal dietary decisions.
Who Should Eat It
Health Conditions — Adjust or Avoid
If you have a medical condition, consult your doctor before changing your diet.
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