Step 1

Preheat your oven to 350°Fahrenheit (180°Celsius). Line two baking sheets with parchment paper to prevent sticking.

Step 2

Mix the granulated sugar and cinnamon in a small bowl to make the coating. Set this mixture aside.

Step 3

Combine the cake mix, oil (or melted butter), eggs, and vanilla extract in a medium bowl. Stir until the ingredients are just combined, forming a smooth dough.

Step 4

Use a medium cookie scoop or tablespoon to portion the dough. Roll it into 1-inch balls with your hands.

Step 5

Roll each dough ball thoroughly in the cinnamon-sugar mixture, ensuring it is evenly coated.

Step 6

Arrange the coated dough balls on the prepared baking sheets. Leave about 2 inches of space between each cookie to allow for spreading.

Step 7

Bake in the oven for 9-11 minutes or until the cookie edges are set while the centers remain soft. Avoid overbaking for the best texture.

Step 8

Remove the baking sheets from the oven and let the cookies cool for 5 minutes. Then, transfer them to a wire rack to cool completely before serving.