In a food processor, puree the nuts with all the other ingredients up to and including the pepper to create a smooth, homogeneous mass. Combine the soya drink and agar-agar in a small pan, bring to the boil while stirring, boil fast for approx. 1 min. while stirring. Add the soya drink to the nut mixture, puree briefly. Transfer the mixture to the prepared tin immediately, leave to cool. Cover and refrigerate for approx. 4 hrs. until set.