Portuguese Coriander Soup (Sopa De Coentro)

Directions

1. 1
   Heat the oil in a large pot over moderate heat and saute the onion and garlic until tender but not brown.
2. 2
   Add the stock, potatoes, salt, pepper, and cayenne and cook until the potatoes are tender, 20 to 30 minutes.
3. 3
   Puree in an electric blender or food processor or press through a fine-mesh strained if desired.
4. 4
   Serve hot or cold, adding the coriander immediately before serving.