The mystery has been solved.
Nope, not pumpkin or squash or OJ, or soup, or applesauce or anything like that.
Thanks to a daring teenager, the results from tasting were, "it tastes like milk."
OH YEAH!, now I remember...
During the super soap making spectacle, I had reconstituted some condensed goat milk and only needed half of what was made. Distinctly remember putting the baggy of milk in the freezer and thinking that I better label it or I will forget what it is. Sadly, I forgot to remember so that I wouldn't forget, but at least now I have remembered what I forgot.
Thanks for everyone's help...and yes, it is now labeled. :)