Make and cook cake according to package directions. After cake comes out of oven, take the handle of a wooden spook and poke holes in the cake about an inch apart.
Mix instant pudding and milk. Pour over warm cake, making sure pudding goes in holes. I like to use a spatula to spread the pudding and make sure it is distrubuted evenly. Refrigerate for about half an hour, until pudding is cool.
Put can of frosting in micorwave for about 20 seconds. Pour over cake. Refrigerate till cool and enjoy!!