First things first, get your oven preheating to 350°F (175°C). Go ahead and line a couple of baking sheets with parchment paper. This makes cleanup a breeze!
Grab that beautiful lemon. You'll want to zest the whole thing into a large mixing bowl. The zest holds all those lovely oils and gives us amazing flavor!
Now, add your box of lemon cake mix, the vegetable oil, and the two large eggs right into that bowl with the lemon zest.
Using a sturdy spoon or a rubber spatula, mix everything together. It might seem a little dry at first, but keep mixing until all the ingredients are just combined and you have a soft, thick dough. Don't overmix!
This step is optional but I highly recommend it if you have a little time: cover the bowl and pop the dough into the fridge for about 20-30 minutes. This makes the dough easier to handle and helps the cookies hold their shape better as they bake.
While the dough is chilling (or if you're skipping that step!), put the powdered sugar in a small bowl.
Now for the fun part! Roll spoonfuls of dough into balls, about 1-inch or so in diameter.
Roll each dough ball generously in the powdered sugar, making sure it's completely coated. The more sugar, the better the crinkle!
Place the sugar-coated balls on your prepared baking sheets, leaving about 2 inches between them.
Bake for 9-11 minutes, or until the edges are just set and the tops look slightly cracked but the centers still look soft. They won't get super golden brown because of the sugar coating.
Let the cookies cool on the baking sheets for a few minutes before transferring them to a wire rack to cool completely. Watch that beautiful crinkle magic happen as they cool!