I'm putting on a Georgian (the republic, not the state) supra (banquet) and need sour plums. I've seen the fresh ones in spring time at the Armenian grocers in Fresno. I'm told that Persian markets might sell preserved sour plums or plum paste. Anyone familiar with this product? I have limited time to call around, don't know what to ask for, and am just hoping someone has seen it on the shelf. Where can I buy this Thursday morning in San Francisco, along the 80-corridor (Berkeley, Oakland, Albany, El Cerrito), Marin or Sonoma counties?