Preheat your oven to 225°F (107°C). This low temperature is key to achieving the perfect texture for your meringues.
Line two baking sheets with parchment paper to prevent sticking and ease cleanup.
In a clean mixing bowl, add the room temperature egg whites and cream of tartar. Using a stand mixer or hand mixer, beat the egg whites on medium speed until foamy, about 1-2 minutes.
While the mixer is running, gradually add the sugar, about a tablespoon at a time. Continue beating until the mixture is glossy and forms stiff peaks, approximately 5-7 minutes.
Gently fold in the salt and unsweetened cocoa powder using a rubber spatula. Be careful not to deflate the meringue; keep as much air in as possible.
Fold in the vanilla extract and chocolate chips gently until evenly distributed throughout the meringue mixture.
Using a piping bag fitted with a decorative tip, pipe the meringue onto the prepared baking sheets. Alternatively, use a spoon to drop rounded mounds onto the sheets.
Bake the meringues in the preheated oven for about 1 hour and 30 minutes, or until they are crisp and can be easily lifted off the parchment. Turn off the oven and let the meringues cool completely inside to dry out further.
Once cooled, serve your delightful Chocolate Chip Meringues as a sweet treat or store them in an airtight container for later enjoyment.