1
Preheat oven to 350°. Grease and lightly flour a 9-inch springform pan; set aside.
2
Beat cake mix, Hellmann's® or Best Foods® Real Mayonnaise, water, eggs and cinnamon 30 seconds in large bowl with electric mixer on low speed. Beat on medium speed, scraping sides occasionally, 2 minutes. Pour batter into prepared pan.
3
Bake 40 minutes or until toothpick inserted in center comes out clean. Cool on wire rack 10 minutes. Remove from pan and cool completely. Frost and decorate as desired.
