So I discovered that this is something that I usually make for Thanksgiving. It was a good thing I was reminded, because I didn't know that. And actually, 80% of the people had made it though the line before I remembered to take it out of the fridge. I will say, kids really think it is cool when they see it. I even did this in individual clear plastic cups for one of my sons birthday treats at school.
This recipe is really pretty easy. Just a little time consuming. But if you are hanging around the house anyway, it is no biggie to just keep adding the next layer. They set up pretty quick. Give it a try... your kids/grandkids will think you are wonderful.
6 small packages of Jello (red, orange, yellow, green, blue, purple)
16 oz. container of sour cream
I do this in a 9 X 13 pan which has a very light coating of cooking spray in it.
Add one packet of Jello to 1 cup of boiling water. Stir 2 to 3 minutes to dissolve completely. Pour 2/3 cup of the Jello into the prepared pan, and chill for 15 minutes. Meanwhile, add enough Sour Cream to the remaining Jello to make 2/3 cup. Stir until combined. When first layer has set for 15 minutes, carefully pour Jello/sour cream mixture over it, and chill for 15 minutes. Repeat with remaining colors. Once all layers have been poured, allow to chill for at least 2 hours. Unmold onto a serving platter, if desired, or cut into squares and serve.
Note: as soon as I pour (do it gently so as not to break up the previous layer)the sour cream/jello layer on, I mix the next color of jello up so it is cooled enough to pour when the sour cream/jello layer is set.
You can also use cool whip or evaporated milk instead of sour cream. Just follow the same measurements as above. I thought the cool whip was a pain to incorporate into the jello though.
You can also do this with whatever colors of jello you want for whatever special occasion. You can also do this in a bundt pan and unmold for a special affect.