Amazon has the 9.25oz King Arthur Baking Keto Cake Mix (Chocolate) for $3.95 with free shipping on $35+ or with Prime (extra 5% off with 5 items S&S order).

• 9oz King Arthur Baking Keto Cake Mix (Yellow) for $3.95
• 2-Pack 9oz King Arthur Baking Keto Cake Mix (Yellow) for $7.90