First use? "Waffle" as a verb

I was watching a documentary this morning. The narrator used the word “waffle” in what I think is it’s newer meaning, to prevaricate or equivocate.

This, to me, is a very new use… maybe the last two decades or so.

Does anybody know the first time *waffle *was used in this way?

I remember in the 1972 British Columbia provincial election, each side was accusing the other of waffling, so it was a current term then. A few years before that there was a political faction called “The waffle group”: wikipedia

It’s older than that:

From The Word Detective: