Directions

1. Preheat the oven to 300 degrees. Line sheet pan with silpat or parchment paper.
2. In a large bowl add egg whites and cream of tartar. Beat with mixer at high speed until soft peaks form. Gradually add sugar a little at a time, beating well after each addition, add vanilla and continue beating until you get stiff peaks, the sugar is dissolved and mixture is glossy.
3. Sift cocoa onto the egg white mixture; gently fold until combined.
4. Fold in chocolate chips.
5. Drop mixture by heaping tablespoons onto a prepared cookie sheet.
6. Bake 30 to 40 minutes or just until dry. Cool slightly: remove from cookie