Preheat oven to 375 degrees F. Grease baking sheets or line with parchment paper. Blend sugar and cinnamon in a bowl and set aside.

Using a mixer combine cake mix, eggs, oil, and 1 tablespoon cinnamon sugar in a large bowl until blended. Shape dough into 1-inch balls and roll in the remaining cinnamon-sugar mixture. Place onto prepared cookie sheet. Flatten cookies, gently, with the bottom of a flat glass.

Bake 8 to 9 minutes or until set. Cool cookies 1 minute before removing to a cooling rack to cool completely. Store in an airtight container for up to 4 days.