I made this today for a picnic. It's worth a bump but the six year old thread is closed. I used lite sour cream and cream cheese. Just to be different I added a drop of grape extract. OP is April Show...
I use the same recipe as Leo only instead of white sugar in the cream cheese mixture I use brown sugar and omit the topping. My name is "MUD" if I don't make it for our annual 4th camping marathon!