Preheat oven to moderate (350°F.).

Melt chocolate morsels over hot, not boiling, water. Remove from hot water and let cool for five minutes.

Beat the egg whites until stiff but not dry. Gradually add the sugar and beat until smooth and glossy. Fold in melted chocolate, the crumbs and vanilla.

Drop level teaspoons of the batter onto greased cookie sheets. Bake for fifteen minutes. Serve with custards and ice creams.