Chocolate Meringue Cookies Recipe

Preheat oven to 285 degrees F (140 degrees C). Line a baking sheet with baking paper. Set aside. 

In a large bowl, combine eggs whites, cream of tartar, and vanilla extract. Whisk to soft peaks using a balloon, whisk, an electric mixer, or a stand mixer with the whisk attachment. Add sugar by the tablespoon. Whip to stiff peaks. 

Sift and then slowly fold in cocoa powder, taking care not to deflate the mixture. Spoon mixture onto the prepared baking sheet. Bake in the preheated oven until dry and crispy on the outside, about 1 1/2 hours. Let cool on the baking sheet for at least 10 minutes before transferring to a container.