Given the text: In a large saucepan, cook leek and onion in butter and oil over low heat for 3-4 minutes, stirring occasionally. Add potatoes and cook 2-3 minutes more. Cover with fish stock, add parsley and season. Bring to a boil and simmer for 15 minutes or until potatoes are cooked. Meanwhile, in another saucepan, steam clams open in a small amount of water. Throw away any that remain closed and remove meat from open ones. Strain clam cooking liquid through a very fine sieve, put shelled clams in it and refrigerate. Purée potato mixture in the blender. Add cream, blend and refrigerate for about 2 hours. Just before serving, add clams and cooking liquid.
In a large saucepan, cook leek and onion in butter and oil over low heat for 3-4 minutes, stirring occasionally.
Add potatoes and cook 2-3 minutes more.
Cover with fish stock, add parsley and season.
Bring to a boil and simmer for 15 minutes or until potatoes are cooked.
Meanwhile, in another saucepan, steam clams open in a small amount of water.
Throw away any that remain closed and remove meat from open ones.
Strain clam cooking liquid through a very fine sieve, put shelled clams in it and refrigerate.
Purée potato mixture in the blender. Add cream, blend and refrigerate for about 2 hours.
Just before serving, add clams and cooking liquid.
Can you provide a recipe for a chilled clam and potato soup?
This prompt doesn't seem malicious.