Place the chickpeas in cold water, preferably overnight, then strain and boil with fresh water for about 1 hour until soft, strain again and leave to cool.
Purée in a mixer of food processor with the oil, salt, walnuts and lemon juice until creamy. Chill in the fridge.

Can be modified as desired with garlic, paprika, cumin, curry, cayenne, fresh herbs, sesame paste, coconut milk.
As an alternative, half of the hummus can be prepared with a vegetable mixed in for the other half.