Chewy Chocolate Cookie - Yummy

Directions

1. Place the chocolate in a microwave-safe bowl and microwave on High for 1 minute. Stir well, then continue microwaving in 30-second increments on High until two-thirds of the chocolate has melted, stirring well after each heating. Remove the bowl and continue stirring until all the chocolate has melted.
2. Cool for 5 minutes at room temperature.
3. Position rack in the center of the oven; preheat to 350° F.
4. Line a large baking sheet with parchment paper. Whisk flour, cocoa powder, baking soda and salt in a medium bowl.
5. Beat egg whites in a large bowl with an electric mixer until foamy, about 1 minute. Beat in granulated sugar in a slow, steady stream. Scrape down the sides, then beat in brown sugar 1 tablespoon at a time. Beat until smooth, about 3 minutes. Beat in vanilla and melted chocolate.
6. Stir in the dry ingredients with a wooden spoon until just incorporated. Drop the batter by tablespoonfuls onto the prepared baking sheet, 1 1/2 inches apart. Bake the cookies until flat yet springy, with slightly cracked tops, 10 to 12 minutes.
7. Cool on the pan for 5 minutes, then transfer to a wire rack to cool completely. Let the pan cool for a few minutes before baking another batch; replace parchment paper if torn or scorched.