This started out being a totally different cake, this was far better. I got a bit carried away, I made this sugar free for my husband who is diabetic, it tasted wonderful. I will post this recipe non-sugar free but all the ingredients can be bought sugar free.
1Preheat oven to 350 degrees.
Combine cake mix, water, oil, eggs, cinnamon, banana and 1/4 cup of the chopped nuts. Mix 2 minutes on low with a hand or stand mixer, pour into 9 x 13 pan.
2Bake cake according to instructions. After baking, cool for at least an hour.
3Once cake has cooled, use the handle of a wooden spoon to poke holes abour 2 inches apart all over cake.
4Mix the pudding and cold milk according to package instructions, pour over cake into the holes.
5Cover with plastic wrap and refrigerate for at least an hour.
6Cover with full tub of whipped topping and crumble vanilla wafers or remaining 1/4 cup of chopped walnuts whatever your preference over the top of cake. Cool at least an hour before cutting and serving.