Amazon offers the Kitchens of India Butter Chicken Curry Paste 6-Pack for $9.60 with free shipping via the instructions below. That's $6 under the lowest price we could find for this quantity elsewhere, although we saw it for a buck less in March.
  1. view the Kitchens of India Butter Chicken Curry Paste 6-Pack for $12
  2. clip the on-page 20% off coupon to drop it to $9.60
  3. check out via Subscribe & Save to bag free shipping
Note: Be sure to cancel Subscribe & Save after your order ships to avoid being billed for subsequent shipments.