Prep: Preheat the oven to 350 degrees F and spray a baking sheet with nonstick cooking spray or use a silicon mat. Set the prepared baking sheet aside until needed.
Make dough: In the bowl of a stand mixer, fitted with the paddle attachment, or in a large mixing bowl with an electric mixer, beat together the butter and both sugars until light and fluffy. This should take about 3-4 minutes. Next, add in the egg and the vanilla extract. Beat again for another minute until combined.
In a separate small bowl, whisk together the dry ingredients: flour, cocoa powder, baking soda, and salt. Then, add the flour mixture to the wet butter mixture and mix on low speed until just combined. Be careful to not overmix, stir until just combined and no white flour is showing.
Scoop & Sprinkle: Use a 1 tablespoon-sized cookie scoop or measuring spoon to scoop out the dough and then roll it into balls.
Proceed to pour the sprinkles into a small bowl, then roll the cookie doughballs into the sprinkles until well covered. Place the cookie dough onto your prepared baking sheet.
Bake: Bake the cookies in the preheated oven for 11-13 minutes or until the edges of the cookies look firm.
Then, remove the cookies from the oven and allow them to cool for 10 minutes. Transfer to a wire rack to finish cooling completely. Serve immediately and enjoy!
Chocolate Sprinkle Cookies make a fantastic treat to serve at any party or event! These cookies with sprinkles are simple to make, use basic ingredients and are oh so pretty too!