Cut the chiles and remove stem and
seeds. Cut into pieces into a small bowl and cover with boiling water to soften. Set
aside.
Grind sesame and cilantro seeds in
coffee grinder. (If you don't have one, seeds will be OK whole in blender or food
processor.)
Put raisins, tomatoes, and chiles
in a food processor or blender. Add ground seeds, nuts, cinnamon, cloves, and cocoa.
Process or blend until nearly smooth. Add chicken stock.
Transfer to a saucepan and heat on
the stove until you are ready to serve. You can use more chicken stock to get the
sauce
consistency you want.