Preheat oven to 300º F.

In a large mixing bowl or Kitchen aid mixer, beat egg whites, salt and cream of tartar at high speed until soft peaks form. Add sugar, 1 tablespoon at a time, beating until stiff peaks form.

Sift cocoa over egg white mixture and fold in. Fold in chocolate chips.

Cover a baking sheet with parchment paper. Drop batter by level tablespoonfuls onto prepared baking sheet. Bake at 300° for 40 minutes or until crisp. Cool on pan on a wire rack.

Repeat procedure with remaining batter, reusing parchment paper. Serve and enjoy! Best stored in an airtight container.