Verla--- I make this in a 9"X13" pan all the time. I bake it for the time given for that size pan which I believe is about 35 min. It may fall slightly but doesn't really hurt anything. I have never tried doing it in an angel food cake pan but feel it may be a little heavy batter to do that. I suppose it is worth a try. Just cut in squares & dollop a little Cool whip on top. Very Good! Pat---Michigan