Bake cake as directed in a 9 x 13" pan. Let cake cool. Poke holes in cooled cake. Mix 1 package orange gelatin dessert with 1 cup boiling water and 1 cup cold water. Pour over cake. Cover and refrigerate for 4 hours.
Mix pudding mix with cold milk the other package of orange gelatin dessert and vanilla. Beat by hand with a whisk until thickened. Fold in the whipped topping. Frost the cake with
the pudding mixture.
For a layered cake: Make the cake batter as directed, then batter pour evenly into 3 round 9" cake pans. Bake cakes as directed and let cool.
Then, make the orange gelatin as directed on the package : you'll let the gelatin set up instead of pouring it into the cake. Use your round cake pans,or deep cookie sheet with edges.When you pour the liquid gelatin mixture into the pans, it will need to be refrigerated for around 4 hours.Make the pudding mixture according to the original recipe. Finally, layer in this order: cake, gelatin pudding mixture. Repeat once more for a 6-layered cake.