Chilled Potato Leek Soup with Cream

Classic French vichyssoise is an elegant chilled soup combining caramelized leeks, tender potatoes, and rich cream into a silky puree. Subtle mace adds warmth to the cool, refreshing dish. Serve as a first course on warm days or at formal summer dinners. This version follows traditional preparation with overnight chilling for full flavor development.
Ingredients
- 6 leeks, trimmed, white parts finely sliced
- 2 tablespoons unsalted butter
- 6 medium potatoes, peeled and finely sliced
- 2 pints chicken stock
- ¼ teaspoon ground macenutmeg1:1spice
warmer notes
- ½ teaspoon salt
- ¼ teaspoon black pepper
- ¾ cup heavy cream
- fresh chives, for garnish(optional)
Instructions
- 1
Trim leeks and slice white parts very finely.
- 2
Melt butter in large saucepan and stew leeks until soft.
- 3
Add potatoes, chicken stock, mace, salt, and pepper.
- 4
Bring to boil, then simmer for 40 minutes.
- 5
Stir in cream and transfer to blender.
- 6
Puree until smooth, taste, and adjust seasonings.
- 7
Cool to room temperature.
- 8
Refrigerate for 8 hours to overnight.
- 9
Ladle into bowls and garnish with snipped chives.
Tips
Slice leeks and potatoes uniformly so they cook evenly and puree smoothly without lumps.
Chill overnight rather than just 8 hours for deeper flavor integration and ideal silky texture.
Taste before serving; cold dishes need more seasoning than warm ones to taste properly balanced.
Good to Know
Refrigerate in airtight container up to 3 days. Do not freeze; cream separates upon thawing.
Prepare through cooling step up to 1 day ahead. Chill in refrigerator; finish chilling before serving.
Ladle into chilled bowls. Garnish with fresh chives. Serve immediately at cold temperature.
Common Mistakes
Do not skip overnight chilling to avoid flat flavor and warm texture.
Do not oversimmer potatoes to avoid mushy texture that won't puree smoothly.
Do not add cream before cooling to avoid curdling during blending.
Substitutions
Dairy-Free Swaps
General Alternatives
FAQ
Can I make this soup ahead for a dinner party?
Yes. Prepare up to 1 day ahead through the cooling step. Refrigerate, then finish chilling overnight before serving. The soup actually improves with time as flavors meld.
What if I prefer a thinner or thicker consistency?
Add more stock gradually to thin, or simmer uncovered longer before pureeing to thicken. Adjust texture before chilling since cold soup appears slightly thicker.
How long does vichyssoise keep refrigerated?
Store in airtight container up to 3 days. Do not freeze, as cream-based soups separate upon thawing. Taste before serving and adjust seasonings if needed.