6 egg whites
¾ cup sugar
¾ cup icing sugar
5 tbsp unsweetened cocoa powder
Preheat oven to 200F. Whisk egg whites and when stiff slowly add sugar to form shiny firm peaks. Fold in cocoa, 1 tbsp at a time. Put large spoonfuls on parchment for 1 ½ hours. Cool in oven.
2 tbsp unsalted butter
1 egg yolk
3 ½ oz. semi-sweet chocolate, melted
3 egg whites
Cream butter, add egg yolk and chocolate mix till well blended, beat egg whites till stiff. Fold in chocolate mixture, chill till firm. Spoon one portion on flat side of meringue, sandwich with another meringue.