Preheat oven to 350 degrees F. Line a baking sheet with a silicone mat or parchment paper.
In a large bowl, combine the cake mix and flour. Add in the eggs, oil, and whiskey. Mix to combine. (The dough will be really sticky and have the consistency of a very thick cake batter.)
Portion dough into a bowl of powdered sugar using a small cookie scoop (or a tablespoon measuring spoon). Roll the dough around in the sugar until it is well coated.
Pick up the dough and form it into a ball as best you can. Place the cookie batter balls on your prepared baking sheet.
Bake for 12 to 15 minutes. Do not over bake. Cookies will be soft when removed from oven. Allow to cool on baking sheet for 5 minutes., and the transfer to a wire rack to cool completely. Cookies will set up as they cool.