In a bowl mix cake mix with eggs, melted butter and peanut butter if you're adding that.
Then scoop out dough with small cookie scoop and roll in a bowl full of sugar. Place on baking sheet with parchment paper on top or lightly sprayed with non stick spray.
Bake for 8 -10 minutes just until the outsides are lightly browned and are starting to stiffen up. Middle will still appear just a tad wet is the way we like it (so they remain chewy - we stick to 8 min.)
Take out, set pan on cooling rack and do not remove cookies until they've cooled so they can continue to stiffen up on the tray.