Ingredients for - Vichyssoise
How to cook deliciously - Vichyssoise
1 . Stage
In a large pot over medium-high heat, melt butter. Add leeks, onion, salt, black pepper, white pepper, and nutmeg. Cook, stirring occasionally, until softened and slightly golden, about 20 minutes.
2 . Stage
Stir in potatoes and broth and bring to a boil. Reduce heat to medium-low, cover, and cook until potatoes are falling apart, about 30 minutes.
3 . Stage
Remove from heat and let cool 5 minutes. Using an immersion blender, blend soup until smooth. If desired, pass through a fine-mesh sieve to remove any remaining chunks. Stir in half-and-half and ice, then transfer to the refrigerator to chill until cold.
4 . Stage
Divide soup among bowls. Top with a dollop of sour cream and chives, if using.