Has the sort of chocolate money you get at Christmas ever been legal tender?

I heard rumor that during the Great Depression when money was very hard to come by, that and overproduction of chocolate money and sweets in 1928 led to a glut that sustained many families in the Dust Bowl with no work or prospects.
I certainly use chocolate for certain favors and bribes, but I was wondering about this rumor.

What say you on the use of chocolate as tender?

also:
Have you ever bartered with/for chocolate?