Combine 1st 7 ingredients in food processor.
short bursts until the mixture is well blended, and the
cashews and garlic have been chopped into pieces about
half the size of a grain of rice. Combine the vinegars,
honey, tamarind, and saffron in a small bowl. Heat the
mixture for about 1 minute in microwave then stir until
tamarind pulp dissolves completely. Pour mixture into
blender or food processor and mix with cashew mixture
(about 20 seconds). Pour sauce into bowl. and the oil and
stir by hand. Cover and refrigerate at least 30 minutes.