Preheat your oven to 350°F and line a baking sheet with parchment paper or silicone mat. This ensures even heat distribution and prevents sticking. While the oven heats, measure out your powdered sugar into a shallow bowl for easy coating later.

In a large mixing bowl, combine the lemon cake mix, whipped topping, and lemon zest. Mix gently but thoroughly until the dough comes together—this should take just 1-2 minutes. The whipped topping will create an incredibly moist, tender cookie texture. I like to use a rubber spatula rather than an electric mixer to avoid overworking the dough, which can make the cookies tough.

Scoop the dough into 1-inch balls using a cookie scoop or small spoon, and immediately roll each ball in the powdered sugar from Step 1 to coat all sides. Work quickly so the dough stays cool and easier to handle. Place the coated dough balls on your prepared baking sheet, spacing them about 2 inches apart to allow for slight spreading during baking.

Bake for 12 minutes, until the edges are set but the centers still look slightly underbaked—this is intentional and keeps the cookies tender and chewy inside. Remove from the oven and let the cookies cool on the baking sheet for 5 minutes before transferring to a wire rack. I find that letting them cool slightly on the sheet helps them hold their shape better. Once completely cooled, they'll have a crackled sugar coating that's absolutely beautiful.