Preheat oven to 375. Grease cookie sheets. Combine sugar and cinnamon in small bowl.

Combine cake mix, eggs, and oil in large bowl. Stir until well blended. Shape dough into 1 inch balls. Roll in cinnamon-sugar mixture. Place balls 2 inch apart on cookie sheets. Flatten balls with bottom of glass.

Bake 375 for 8-9 minutes or until set. Cool one minute on cookie sheets. Remove to cooling rack to cool completely.