$.50 off any One Krusteaz Muffin Mix Posted by Harbor Master on 11 January 2018, 5:30 pm Tweet The Coupon Expires 04/30/18, The print limit is two. Click here to print a coupon for $.50 off any One Krusteaz Muffin Mix Submit for $.75 cash back from Checkout 51 when you purchase Krusteaz Muffin or Crumb Cake mix (limit 1) Cannot use this offer with any other print or in-app coupon or rebate. Through 04/04/18, Kroger has Krusteaz Muffin Mix on sale two for $5 or $2.50 each. Just $2 each after the $.50 off coupon above.