Did it use a cake mix? The 4 below use the whole package in the cake. What kind of icing was it? I've found a Jello Seven Minute Frosting but I'm not sure what you want.

Here is a link that might be useful: Jello cakes

Thanks Ginger: It could be the "Lauras Cake" however not the whole box of jello was used, and it could be the 7 minute frosting because I remember Mom cooked the frosting on a double broiler and used the remainder jello,I know egg whites were used. Perhaps if I knew how much jello is used in the 7 minute frosting recipe you have would determine how much to put in the cake mix. :-)
Wow this is great to finally get this. Thanks for finding this.

Here's the Seven Minute Frosting. It uses 3 1/2 TBL Jello. I wonder if your mother used the bigger box of Jello (which I think would be the 6 oz size) & took out 3 1/2 TBL for the frosting. If she was like my mother, she wouldn't have wasted part of another box for the icing. LOL

Here is a link that might be useful: Jello Seven Minute Frosting

Ginger: Thats the frosting! Great find, i think your right I'll try it- with the remainder in the cake mix. Your right Mom would of done that. :-)

Let me know if it turns out as you remember it. Hope it does!

Ginger:
The cake was a hit- it is exactly as I remember it. The remainder jello I put in the cake mix, I'm so glad to have this recipe back in my file now
Thanks again.
:-) Andrea

I'm so glad it was the same one. Thanks for letting me know (we both had frugal Moms.)