With orders of $25 or more, Amazon offers Prime members the Kitchens of India Butter Chicken Curry Paste 3.5-oz. Box 6-Pack for $8.61 with free shipping. (Non-members can spend $35 to bag free shipping.) That's the lowest total price we could find by $5, although we saw it for a buck less last week.

Note that this item is part of Amazon's add-on program and can only be purchased with an order of $25 or more.