Line a baking sheet with parchment paper. Set aside.
In a large bowl, stir the brownie mix, included syrup packet, eggs, and butter together until combined.
18 ounces Ghirardelli Chocolate Supreme Brownie Mix, 2 large eggs, ¼ cup unsalted butter
Tightly cover the bowl of cookie dough and chill in the refrigerator for 30 minutes.
While the dough is chilling, preheat oven to 350°F. Pour the powdered sugar into a small bowl. Set aside.
1 cup powdered sugar
Once the dough is chilled; scoop a heaping tablespoon worth of brownie dough into your hands. Roll the cookie dough ball into a smooth circle.
Place the brownie cookie dough ball into the bowl of powdered sugar to fully coat. Place on prepared baking sheet.
Repeat to have 6 cookies on a medium baking sheet, or up to 12 on a large sheet, leaving at least 2 inches between each cookie.
Bake for 11-12 minutes, or until the edges are set.
Allow cookies to cool on the sheet pan for 5 minutes, then transfer to a cooling rack.