I came across this recipe some time ago, and it is a keeper. It is, as Zachary likes to say, "Easy-peasy-lemon-squeezy!" It is a super moist cake, and when you slice it you get a fun ribbon of cinnamon sugar.
1 box yellow cake mix (Or homemade substitute)
2 cups applesauce
Spray a bundt pan.
Sprinkle cinnamon sugar all over the edges of the pan.
Mix together the cake mix, applesauce and eggs.
Put half the batter in the pan.
Sprinkle more cinnamon sugar over the batter, trying to keep away from the edges.
Spread the rest of the batter on top.
Bake at 375 for 40-45 minutes.