Amazon offers the Ghirardelli Double Chocolate 18-oz. Brownie Mix 12-Pack for $24.62. Add it to your cart via Subscribe & Save and it drops to $20.93 with free shipping. That's $1.75 per pack, $19 off, and the lowest total price we could find for this quantity.

Be sure to cancel Subscribe & Save after your order ships, or you'll be billed for subsequent shipments.