~ How to make rainbow jello ~
You’ll need one small box of jello for each color you want… so in this case, red, orange, yellow, green, blue, and purple. And one large tub of cool whip.
Prepare purple (or whatever color you want on the bottom) jello as directed, using the “quick chill” method, meaning add some ice. Pour jello into glasses, (or a 9′x13′ baking dish sprayed lightly with cooking spray), reserving about 1/3 of the liquid jello. Put glasses, or dish in the refrigerator and chill for 15-30 minutes, or until slightly set. Mix about 1/3 cup of cool whip into the remaining purple jello. Pour the jello/cool whip mixture on top of the slightly set purple jello already in the glasses (or dish).
Repeat process for each color.
I’ve seen recipes that use sour cream, or yogurt in place of the cool whip, so feel free to do that if it saves you a trip to the store =)
Once set, top with some additional cool whip and sprinkles if desired.