3 egg whites
1 3/4 cup confectioner’s sugar
3/4 cup unsweetened cocoa powder
1 1/2 teaspoons pure vanilla extract
Optional: 2 tablespoons semi-sweet chocolate (rough chop the chips, I used Taza salted almond chocolate)
Preheat oven to 350 degrees F.
Line 3 cookie sheets with parchment paper.
In medium-large bowl whip egg whites until fluffy-forming soft peaks. Gradually add in sugar, cocoa and vanilla.
Fold in chopped chocolate, if using.
Drop by teaspoonful onto baking sheets into 32 small size cookies.
Bake for about 8 minutes- should be a little puffed up with a slight crust on top of cookie.Source : allrecipes.com