Preheat the oven to 250˚F.
In a medium bowl, beat together the egg whites and cream of tartar until soft peaks form.
Slowly beat in the icing sugar until sugar is completely dissolved. The whites should stand in stiff glossy peaks. Fold in the coconut with a rubber spatula.
Drop mixture by rounded teaspoonfuls onto a large cookie sheet, about 1 inch apart.
Bake for around 1 hour, or until dry. Place on wire racks to cool.