Grease a Bundt pan with non-stick spray and sprinkle with granulated sugar (this helps from the cake sticking to the pan and gives the finished cake a sweet crunch).
You can use chocolate cake mix instead of yellow cake mix. A chocolate swirl can be made in the cake. Reserve ¼ cup of batter before pouring into the pan. Stir reserved batter with chocolate syrup (like Hershey’s), pour over batter already in pan. Swirl with knife if needed. This makes a nice swirl design in the finished cake.