Preheat oven to 350°F and line two baking sheets with parchment paper or non-stick silicone baking mats.
Whisk together chocolate cake mix, eggs and oil in a large mixing bowl until well combined.
Portion the dough into balls that are each about the size of a ping-pong ball. Place the dough balls on baking mat, leaving a couple inches between each one.
Use the back of a spoon or your thumb to flatten each ball of dough and place a cherry in the middle.
Wrap the cookie dough around the cherry so that it is completely covered and again in the shape of a ball.
If using sugar crystals, pour them into a small bowl. Press each cookie dough ball into the sugar, so that the top is coated.
Place the cookie balls back on the baking sheets, sugar-side up.
Bake for 8-10 minutes at 350°F.
Video
Notes
Nutrition info is an estimate only and may vary depending on your serving sizes.