Crunchy Chocolate Banana Bars

2/3 c nonfat dry milk (reg or instant is fine)
1 Tbsp unsweetened cocoa powder (Ghirardelli, Hershey, Droste...)
1.5 tsp sugar
1 very ripe (even overripe - it gets sweeter) medium banana
1/4 tsp vanilla  extract
1/3 C GrapeNuts cereal

First, spray a piece of foil or small cookie sheet with Pam.

Mix the first three ingredients together.  Mash the banana until
thoroughly wet, mix in extract, then stir together with the dry stuff
until it all gets absorbed .Stir in the grape nuts.

Form into two bars on the foil or cookie sheet, and freeze.