Transfer cereal mixture to a 2 - gallon ziploc bag or a very large tupperware - type container with a sealable - lid (I used a large salad bowl). (bakingbites.com)
In a large tupperware, combine all of the ingredients (except the meat and oil). (spachethespatula.com)
I've had luck freezing these cookies in a large tupperware lined with parchment paper (with more paper in between each layer) and «defrosting» them at room temperature for a couple of hours. (confessionsofachocoholic.com)