I found this on the Duncan Hines US site, but couldn't find it here, so adding it, I am making it at this moment. My sister made it for friends the other day and said it taste just like a creamsicle would.
- 1.Prep cake with 1 1/3 water, 1/3 Cup veg. oil and 3 eggs, and bake cake mix according to package directions for a 9x13 inch pan. Poke holes in cake when cooled in rows about an inch apart.
- 2.Mix the gelatin with the hot water and then add the cold water. Pour evenly over the cake.
- 3.Combine the whipped topping, instant french vanilla pudding, milk, and the vanilla extract. Beat until completey mixed and thickened. Spread evenly over the cake. Refrigerate cake for 1 hour before serving.