Bake the cake according to the directions on the back of the box in advance so it is cooled completely.
In a bowl, add the vanilla Snack Pack pudding and dye a yellow color. I kept a candy corn out to use as a guide for the right color.
If making mason jar trifles as pictured, layer half of the pudding in the bottom of each jar. Take the cake and crumble it into the jar until almost to the top. Top with Reddi Wip, garnish with candy corn if desired, serve and enjoy!